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“It doesn't make much difference how the paint is put on as long as something has been said. Technique is just a means of arriving at a statement.” Jackson Pollock was first introduced to modern art at age sixteen, and worked on the WPA Federal Art Project during the Great Depression. In 1943, he had his first solo sho...
Teacher resources and professional development across the curriculum Teacher professional development and classroom resources across the curriculum \|ollowing 1000, peace and order grew. As a result, peasants began to expand their farms and villages further into the countryside. The earliest merchants were peddlers who ...
Learn something new every day More Info... by email Ultra-high vacuum refers to pressures lower than 10−7 pascal or 100 nanopascals (one ten-millionth of a pascal). By comparison, atmospheric pressure is 101.3 kPa (kilopascals), more than a billion times greater, the pressure inside a light bulb is about 1 pascal, and ...
view a plan Bring The Meaning Of Veteran’s Day To Young Students With Active Lessons Every November, one holiday goes mostly unnoticed in many school districts’ celebrations and activities: Veterans Day. This holiday celebrates the soldiers who have fought for their country through many wars and provides an opportunity...
About the Book By 1865, slaves were free, the Civil War was over, and confusion reigned throughout the South. Gideon, a black Union soldier, finds his little brother Pascal back on the plantation. With another ex-slave, eight-year-old Nelly, the brothers seek the government's 40-acre farms (and maybe a mule) promised t...
Send the link below via email or IMCopy Present to your audienceStart remote presentation - Invited audience members will follow you as you navigate and present - People invited to a presentation do not need a Prezi account - This link expires 10 minutes after you close the presentation - A maximum of 30 users can foll...
In this set of activities adaptable for grades K-3, parents and educators will find ideas for teaching about transformations (slides, turns, and flips.) These activities are designed to complement the BrainPOP Jr. Slides, Turns, and Flips topic page, which includes a movie, quizzes, online games, printable activities, ...
In the Tuesday, April 29 New York Times, Donald G. McNeil asks why images of dragons have been so common all over the world and throughout history, when no dragon-like creature has every lived at the same time as humans. Dinosaurs died out millions of years before we came along. Although dinosaur skeletons weren't iden...
Instructions: Read the text below to find the answers to the questions on your worksheet. E.H. Gombrich, in his book The Story of Art says that "There really is no such thing as Art. There are only artists." This is, of course, debatable, but it would appear that Oscar Wilde would have disagreed with him. The famous Br...
Research, restage, and photograph a historic event. Then, write a short paper explaining your research process. Last, present your photograph and its caption to the class. 1. Look closely: Explore the works of Jeff Wall online. Be sure to click on all images, read all documents, watch the videos, and look closely at th...
What are the laws of physics, and how did they develop? This reader-friendly guide offers illustrative examples of the rules of physical science and how they were formulated. It was written by Francis Bitter, a distinguished teacher and inventor who revolutionized the use of resistive magnets with his development of th...
Here’s one to confound the creationist crowd: life may have begun as a result of organic molecules resulting from impacts by comets or meteorites. No supernatural foundation, no invisible hand guiding the process. Just random crashes, a little physics, some chemistry, a while lot of time, and voila: life. But wait, the...
What does the introductory poem summarize? What about the American Indians' demise? What about the troubled course of this story's main character into manhood? Early in the book the reader learns the Utes are quite resourceful, and they approach life in a very practical fashion. When the farming methods taught them by ...
U-shaped valleys, moraines, and grooves abraded into bedrock are direct evidence that glaciers have come and gone. They are likewise evidence that Earth’s climate has been dramatically different in the past. Consider that during 90% of the last 600 million years, world temperatures have averaged 72°F; today they averag...
Lesson 1: What’s the Point of View? America Street \| 870L - Learning Goal - Identify the point of view in multiple short stories, including third person limited and omniscient. - Approximately 2 Days (35 minutes for each class) - Necessary Materials - Provided: Point of View Handout, Point of View Example Chart, Pointi...
The abolition of slavery was a slow, gradual and uneven process throughout the The end of the slave trade The intense campaigns in the British Parliament in the last quarter of the 18th century, the civil awareness campaigns and the creation of the British Abolitionist Society demonstrated the central role that the Qua...
Few Were Able To Pay Their Way Relatively few colonists could finance the cost of passage for themselves and their families and of making a start in the new land. For those who could not, the expenses of transportation and maintenance were paid by colonizing agencies like the Virginia Company and the Massachusetts Bay ...
We have all seen the devastating effects of drought in the Midwest last year. When reservoirs are depleted and crops are struggling to survive, everyone is aware of the severity of the problem. Here in the New York area, we didn’t experience the scarcity of water that the Midwest felt. Yet 2012 was a hot, dry year, and...
NASA finds water on dark side of the moon? NASA has confirmed the presence of water in the permanently shadowed region of the Cabeus lunar crater. "Preliminary data from the Lunar CRater Observation and Sensing Satellite, or LCROSS, indicates that the mission successfully uncovered water during the Oct. 9, 2009 impact ...
The 20 enjoyable, interactive classroom activities that are included will help your students understand the text in amusing ways. Fun Classroom Activities include group projects, games, critical thinking activities, brainstorming sessions, writing poems, drawing or sketching, and more that will allow your students to i...
The history of the first animal life remains somewhat confused. Ediacaran fossils are clearly multicellular, but lack many of the features shared by all modern animals. In the ensuing period, the Cambrian, all of these organisms are gone, and most of the groups we're familiar with—along with a few unfamiliar ones—are p...
NCTC Cultural History Native Americans lived intermittently along the edge of the river they called the Cohongoroota for thousands of years. Riverbottom lands provided fertile soil for their fields of squash and corn, and the rolling limestone uplands supported plentiful resources including large herds of buffalo and e...
Brief SummaryRead full entry BiologyThis species is single-brooded, with a protracted emergence. Adults are on the wing from May into August. Females lay their eggs in large batches, but the newly hatched caterpillars soon disperse. They spin silk threads and float off downwind until they land again by chance. Fortunat...
A Brief History Cordless phones first appeared around 1980. The earliest cordless phones operated at a frequency of 27 MHz. They had the following problems: - limited range - poor sound quality - noisy and ridden with static because walls and appliances interfered with the signals - poor security - people could easily ...
\|Class Cephalopoda: the Head-Feet The final molluscan class you'll consider is the Cephalopoda (head-foot). Refer to the generalized mollusc diagram and compare it to the cephalopod in the left hand corner. Notice the shell is present, although reduced, and the mantle cavity and the ctenidium are still represented. Alt...
Debate regarding the Electoral College has persisted since the Founding. There were 18 different votes at the Constitution Convention of 1787, adopting and rejecting various plans for the election of the president. The present, complicated system was the product of uncertainties and compromises. Defenders of the Electo...
Fossils Are Found at All Levels The earth is covered with layers of sedimentary rock, much of it containing microscopic fossils such as plankton, pollen, and spores. The entire record of visible fossils consists mainly of marine invertebrates (animals without a backbone), including clams, jellyfish, and coral. What is ...
Problems that Encourage Proportion Sense Esther M. H. Billings Several problems promoting proportion sense, reasoning about quantities, and the various relationships among quantities in proportions. Creating Connections: Promoting Algebraic Thinking with Concrete Models Michaele F. Chappell and Marilyn E. Strutchens Us...
By simply manipulating chemical gradients in a beaker of fluid, researchers have been able to create delicate flower structures - not at the scale of inches, but microns. These minuscule sculptures don't resemble the cubic or jagged forms normally associated with crystals, though that's what they are. Rather, fields of...
Brucellosis is one of the most serious diseases that affect livestock, resulting in decreased milk production, weight loss in animals, loss of young, infertility, and lameness. The disease spreads rapidly and is transmissible to humans, which makes it a serious threat. The disease is caused by a group of bacteria known...
The nominal rate of interest is the stated rate that contracts are based on. It is approximately equal to the real rate of interest plus the inflation rate. From the perspective of investing or loaning money, lower inflation rates are desirable because they imply higher real rates of interest. From the perspective of a...
St. Edmund the Martyr? St Edmund or St. Edward the Confessor? The saintly king on this roundel is probably English, because the style and painting technique indicate that it was made in an English workshop. The scroll behind the head reads 'SCE EDE', which is an abbreviation in Latin for either St Edward or St Edmund. ...
Difference Between Kinematic and Dynamic Viscosity Every type of fluid possesses differing amounts of resistances against deformation. The measure of that resistance is called viscosity. Viscosity expresses the fluid’s resistance against either tensional stress, or shear stress. In common terms, viscosity is the thinne...
MYTH MAN'S HOMEWORK HELP CENTER from Suzetta Tucker's The griffin is a mythical creature with the face, beak, talons and wings of an eagle and the body of a lion. At times, it is portrayed with a long snake-like tail. In some traditions, only the female has wings. Its nests are made of gold and its eggs resemble agates...
Three species of cottontail occur in Arizona: the mountain cottontail, eastern cottontail, and desert cottontail. The smallest of these weighing 22-30 ounces is the relatively short-eared mountain cottontail. This species is largely restricted to elevations above 7,500 feet from the Mogollon Rim northward. The generall...
Women and children can understand the language, but it is primarily used among men engaged in male domain activities like fishing and boat-buildingAn aerial view of Sapwuahfik (NASA) In 1837, the British cutter Lambton sailed from Sydney to Ngatik (now Sapwuahfik, above), a tiny island in Micronesia. On orders from Cap...
From Dred Scott to the Civil Rights Act of 1875: Eighteen Years of Change - National Archives Education Team - Making Connections - Historical Era: - Civil War and Reconstruction (1850-1877) - Primary Historical Thinking Skill: - Historical Analysis & Interpretation - Bloom's Taxonomy: In 1857, the U.S. Supreme Court r...
This section contains 30 daily lessons. Each one has a specific objective and offers at least three (often more) ways to teach that objective. Lessons include classroom discussions, group and partner activities, in-class handouts, individual writing assignments, at least one homework assignment, class participation exe...
Begin your lesson by asking your students the following questions: - Why do soups and pops and other food containers come in cylindrical containers?” [Students may answer that the containers are easier to open, easier to make, cheaper, you can fit more food in a cylinder, or other various answers] - When food companies...
Kindergarten Worksheets > Alphabet Parade > Letter G These worksheets are designed to introduce your child to the letter G. Beginning with the first worksheet in the collection, the worksheets progress from beginning (identifying the letter) to intermediate (identifying words that begin with the letter G sound) to comp...
Page - 1600s first recorded blackface performances in Shakespeare's Othello - 1769 Lewis Hallam, Jr. portrayed a drunken black man in the play The Padlock - 1810s Local versions of the blackface clown - 1822 Englishman Charles Matthews comes to American to study black southern culture for parody, later develops ...
High School Physics/Physical intuition Physical intuition is best defined as the prediction of movement in which we humans usually can predict from common experience. New methods to take away the common confusion that students are frustrated by is by taking this to mind: "nature before math." What this means is that st...
Sorting Our Way to pH In this indoor lab activity students will be given a large variety of objects to sort into categories. After practice and discussion, they will then sort food items; first based on their five senses, then by studying their reactions when placed in red cabbage juice. Students document their predict...
What are Seasonal Allergies?A seasonal allergy is an allergic reaction to a trigger that is typically only present for part of the year, such as spring or fall. This type of allergy refers to a pollen allergy, such as trees, weeds and grasses. Perennial allergies, on the other hand, are usually present year-round, and ...
Lizards Acquire Same Camouflaging Adaptation Differently Does it matter if nature solves the same problem multiple ways? A NSF-supported study of lizard populations in White Sands, New Mexico has helped researcher Erica Rosenblum of the University of Idaho begin to answer that question. Published December 28 in the Pro...
Students are given the privilege of experiencing a unique farm and Horticulture curriculum that combines classwork as well as hands-on gardening to immerse children, mind and body, into this fundamental topic. In the classroom, students learn of the progression from nomadic hunting and gathering to the first crops, fro...
William Ewart Gladstone, Leading Statesman of the Victorian Era: William Ewart Gladstone was a dominant and controversial figure in Victorian England and the leading British statesman of the 19th century. He served in the British government from the 1830s to the 1890s, and as Prime Minister of Britain on four occasions...
The 1924 Everest expedition was the third British attempt to be the first to conquer the world's highest mountain. After failing to be the first to the North or South Poles, the British were eager to make their mark instead on the "Third Pole." With national pride at stake, George Mallory, the best English mountaineer ...
How Children Learn At Home Alan Thomas & Harriet Pattison This web site is about our research into how children learn. Our interest in how children learn is different to most research about learning because it is concerned with how children learn at home rather than how children learn in school or in other situations w...
This video zooms in from a view of the southern constellation Tucana to the globular cluster 47 Tucanae, which sits 16,700 light-years away from Earth. 47 Tucanae is 10.5 billion years old and is one of the brightest of our Milky Way galaxy's more than 150 globular clusters. Astronomers used Hubble Space Telescope imag...
Scientists have shed light on the way superbugs such as MRSA are able to become resistant to antibiotics. Researchers have mapped the complex molecular structure of an enzyme found in many bacteria. These molecules -- known as restriction enzymes -- control the speed at which bacteria can acquire resistance to drugs an...
Susan Borland, Kathy East, Teressa Black, Kathie Klein, Bruce Howard, Challenger Learning Centers 2 50-minute class periodsDiscuss this Resource» Learn more about Teaching Climate Literacy and Energy Awareness» About Teaching Climate Literacy Other materials addressing 2e Other materials addressing Cli Other materials ...
The standards are presented grade by grade in grades K-8 and are a progression of standards at each grade level. The 6th – 8th grade standards focus on four types of writing: expository, narrative, persuasive, and technical writing. The convention standards are woven into each unit. Also, students examine response to l...
By the time World War II started in earnest, electrically-heated suits were introduced for patrol and bomber crews who routinely operated at high altitudes above 30,000 feet, where air temperatures could get so cold that flesh could freeze instantly to any metal in which it came in contact. As pressurized cabins came i...
How the system works Rain falls in Central Florida between Okeechobee and Orlando. Eventually, runoff moves south into Lake Okeechobee. When the lake gets too high, the Army Corps is forced to discharge the excess water. The only place the Army Corps can move high volumes of runoff is to the coasts to go to tide. The S...
Darwin was a British scientist who laid the foundations of the theory of evolution and transformed the way we think about the natural world. Charles Robert Darwin was born on 12 February 1809 in Shrewsbury, Shropshire into a wealthy and well-connected family. His maternal grandfather was china manufacturer Josiah Wedgw...
Premium, Select, and Institutional Plus Member Book Throughout a well-structured unit teachers are continually providing input to students regarding new content. Sometimes this occurs in the form of answers to questions, discussions with individual students, discussions with small groups of students, and other types of...
A mammoth is any species of the extinct genus Mammuthus. These proboscideans are members of the elephant family and close relatives of modern elephants. They were often equipped with long curved tusks and, in northern species, a covering of long hair. They lived from the Pliocene epoch from 4.8 million years ago to aro...
\|Part of a series on\| The horizon problem is a problem with the standard cosmological model of the Big Bang which was identified in the late 1960s, primarily by Charles Misner. It points out that different regions of the universe have not "contacted" each other because of the great distances between them, but neverthel...
The Origin of Life A case is made for the descent of electrons We note that there is a fundamental difference between the way chemical reaction systems could have operated before the appearance of the first self-replicating molecules and the way they operate now that self-replicating systems have developed. In the begi...
Euphemism Study Guide This lesson focuses on euphemisms, words that we use to avoid using other words. A euphemism is a substitution of a mild, indirect, or vague expression for one that might be thought offensive, harsh, or too blunt. This might suggest that speakers and writers use euphemisms merely to display good m...
On November 26, 2011, the rover called Curiosity was launched into space from Cape Canaveral. Nine months later, after a 350 million mile journey, it landed safely on Aeolis Palus in Gale Crater on the planet Mars to much celebration and cheering from Nasa. NASA released new photos of the planet on Tuesday. No ideas wh...
Rationale: In order for children to better readers they must learn to read fluently. Reading fluently consists of a lot of skills including reading smoothly, reading and reading silently. This lesson is designed to help children learn to read with expression. The children will become aware of how the loudness/softness ...
A while ago it was discovered that the Earth's inner core was a bit more complicated than first thought. Our picture of the inner core was pretty simple—a lump of solid iron, made up of microcrystals with some defects and soft boundaries. However, recent measurements of seismic waves revealed that sound waves travel fa...
On an ocean ridge 300 feet beneath the island of Maui, one species of coral has found a place to hide—from global warming. Ohio State oceanographer Andrea Grottoli joined her colleagues Brian Popp and Kenneth Longenecker at the University of Hawaii. Together, they pushed the limits of technology to visit this newly dis...
(part 1 of 7) The removal of American Indian tribes from lands east of the Mississippi River to what is now the state of Oklahoma is one of the tragic episodes in American history. Early treaties signed by American agents and representatives of Indian tribes guaranteed peace and the integrity of Indian territories, pri...
Illustration by Thomas Kimball/Bowtie Studio The egg tooth (the tiny point on the beak) is part of the hatching process. It helps the chick break the shell. Whereas most mammals maintain a protected internal environment for the growing fetus, birds use an external protective covering consisting of calcium called a “she...
November 24, 1999: Massive clouds of gas, discovered long ago but only recently identified as being within the margins of the Milky Way, play a key role in the galaxy's ability to churn out new stars by raining gas onto the plane of the galaxy. Researchers have chipped away at a three-decade-old mystery about the natur...
This photo was taken on the Missouri River in central Montana. It shows the Eagle Sandstone beneath the Claggett Shale. Both were formed during the late Cretaceous Period when the Western Interior Seaway covered much of eastern Montana. As the sea fluctuated, the type of sediment deposited in this place changed. Sand w...
\|One of the Seven Basic Tools of Quality\| \|First described by\|\|Francis Galton\| \|Purpose\|\|To identify the type of relationship (if any) between two variables\| The data is displayed as a collection of points, each having the value of one variable determining the position on the horizontal axis and the value of the other ...
Western Art Music places equal emphasis on both the melodic flow of each voice or part, also called a line, and on the harmonic flow and function of all of the voices put together. This forms a kind of grid, where each note functions in both ways simultaneously. This makes this type of music interesting to listen to, b...
The idea of a written constitution, if it was indeed an American discovery, is coupled in The Federalist with an equally important contribution that relates to the way in which people are to regard the document. The issue here is fundamental: What kind of thing is a written constitution? From a legal standpoint, as we ...
Muscular dystrophy (MD) refers to a group of genetic diseases described by progressive dysfunction and/or weakness of skeletal muscles. Muscles in charge of eye closure, facial expression, talking, swallowing, breathing, and moving upper or lower extremities might be involved to various extents in different kinds of mu...
Over the past 50 years, the pace and magnitude of human-induced global changes has accelerated dramatically. The term defaunation was created to designate the declining of top predators and herbivores triggered by human activity, that results in a lack of agents that control the components of the ecosystems vegetation....
This interesting and engaging lesson enables students to understand the main themes prevalent throughout William Golding’s Lord of the Flies, with particular reference to the dramatization of the conflict between the instincts of savagery and civilization within human beings. In particular, students learn how the behav...
The female reproductive system consists of the vagina, cervix, uterus, fallopian tubes, ovaries and the breasts. The external parts of the reproductive system are called the genitalia or vulva (specific term for female genitalia) and their role is two-fold: To enable sperm to enter the body and to protect the internal ...
Acoustic resonance is the tendency of an acoustic system to absorb more energy when it is forced or driven at a frequency that is the same as one of its own natural frequencies of vibrations. Acoustic resonance is sometimes used to narrow mechanical resonance to the frequency range of human hearing. Since acoustics is ...
Most palaeoanthropologists recognize the existence of two human species during the last million years – Homo erectus, now extinct, and Homo sapiens, the species which includes recent or “modern” humans. In general, they believe that Homo erectus was the ancestor of Homo sapiens. How did the transition occur ? The Multi...
You use demonstrative pronouns to make statements about people, things and places. The pronouns are: - this, these - that, those Use "this" with a single person, thing or place that is close to you: I like this park very much. This car has broken down. This is my sister. Use "these" with many people, things or places t...
Presentation on theme: "“The Shift from Ragtime to Jazz” “jazz styles” [whatever that means] developed wherever musicians, encouraged by the spontaneous performance practices."— Presentation transcript: “The Shift from Ragtime to Jazz” “jazz styles” [whatever that means] developed wherever musicians, encouraged by the ...
Certain applications in electronics require that the upper or lower extremity of a wave be fixed at a specific value In such applications ,a clamping/clamper circuits are used. A circuit that places either the positive or negative peak of a signal at a desired D.C level is known as a clamping circuit. A clamping circui...
You will learn about "3 Types of Rocks" in this video. Rocks can be broadly divided into three types on the bases of their formation, namely igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed from magma, which is a molten rock found deep inside the earth. This molten magma comes upwards or...
The last decade was the hottest on record, and yet it wasn't until 2010 that an individual year was hotter than the record-breaking 1998 heatwave. Somehow, global temperatures mysteriously flattened out. The explanation may lie thousands of feet underwater. Scientists have long been searching for the so-called "missing...
Introduction to lesson: This lesson will introduce your students to ten facts or sums that equal ten. Ten facts are the keys to learning addition facts with the sum greater than ten. You may even wish to consider exploring 10 facts in other number bases and how the same conceptual ideas hold true in all number base num...
What is Granite? Is a common and widely occurring type of intrusive, felsic, igneous rock. Granite has a medium to coarse texture, occasionally with some individual crystals larger than the groundmass forming a rock known as porphyry. Granites can be pink to dark gray or even black, depending on their chemistry and min...
The two most important factors in temperature are the intensity and duration of insolation, or solar energy received by the sun. These temperature factors vary by the latitude and longitude of a location as well as the season.Continue Reading An example of duration of insolation is the length of days during different s...
Uniformity refers to not only how the screen displays an image, but also how well the projector is projecting the image. Traditionally, screen measurements are made by pointing a light metering device at the center of the screen. This is good information, but it only tells how bright a screen's center will appear from ...
In all of Earth’s history, which species of mammal survived for the longest time? Benjamin Burger, a paleontologist at Utah State University, has come up with two candidates that could not be more different: a tiny shrewlike animal that ate insects and a giant relative of the elephant that had a long snout and weighed ...
EDMT 380-002 Main Page Draft Lesson/Unit Plan Outline Cultural Lyric Writing The following lessons are part of a short unit on American heritage. Its focus is on the musical influence of other cultures, and exploring the influence cultures have on language and music. These lessons are set up for Language Arts, but can ...
Today is the winter solstice and the first day of winter in the Northern Hemisphere. It’s all due to Earth’s tilt, which ensures that the shortest day of every year falls around December 21. Some predicted that today would also mark Earth’s doomsday, thanks to a longstanding rumor that the Maya calendar ends on Decembe...
Designed as inquiry, investigation, then creation, this learning experience gives learners an opportunity to discover and understand how culture and geography can shape our beliefs as individuals. Students will read and analyze various texts from different cultures, collaboratively identify main ideas and key details t...
Opal, a stunningly colorful precious stone formed from silica, has been discovered within an Antarctic meteorite. The find, which comes on the heels of a similar discovery last summer involving a Martian meteorite, further lends support to the theory that Earth's water came from extraterrestrial sources. The opal shard...
Algebra explored the expansion of (a + b)² today. Across 100 students, none of them were able to correctly expand (x + 3)² coming into the day. We plugged x = 2 into different expansions. Most students had 13, some had 25. Everyone agreed that 25 was spot on, but couldn’t come up with an explanation as to what (x + 3)²...
Reading and Intellectual Disabilities by Marie E. Buczkowski, M.Ed Reading is an imperative skill not only during a child’s early years of education but throughout a person’s lifetime. Everyone learns to read in a different manner. Some may learn through isolated phonics instruction, others may learn through whole lang...
Is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material. 3D printers are generally faster, more affordable and easier to use than other additive manufacturing technologies. 3D printers offer product developers the ability to print parts and...
Indicator 22 – Teaching/Learning Strategies Indicator 22 – Teaching/Learning Strategies UETS 2e., 3e., 4d., 6b., 6c., 7d., 7g. Effective teachers use specific teaching strategies to help students process new information. These strategies include graphic organizers, study guides, outlines, cooperative learning, providin...
The moon is actually a lot older than scientists thought, according to a new study. Researchers from UCLA analyzed rocks and soil collected by the Apollo 14 astronauts who walked on the natural satellite back in 1971 and found that it is a whopping 4.51 billion years old — a far cry from previous estimates. For years, ...
Two engines, at opposite ends of a single track railway line, set off towards one another just as a fly, sitting on the front of one of the engines, sets off flying along the railway line... A game for two or more players that uses a knowledge of measuring tools. Spin the spinner and identify which jobs can be done wit...
Long before White-Out was invented, people still found ways to get a second chance at reusing a surface. Medieval scribes scraped the ink off sheets of animal hide to reuse the pages. Plenty of artists have painted over one image with another. And now scientists have an example from the Americas as well, as reported in...
Since 1841, many have wondered what might have created "Mima mounds," the mysterious (and quite numerous) large, ancient bumps emerging from the ground in Washington state's Mima Prairie. Earthquakes? Floods? Glaciers? Aliens? Nope. Most likely, it was ... gophers. Researchers think they've finally figured it out, Live...

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