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U.S. Artillery (National Archives) Sixty-three years ago, on June 25, 1950, North Korean forces conducted a brutal surprise attack into South Korea, essentially overrunning the entire country within a few weeks. In about a month South Korean, American and United Nations troops clung to a small toe hold in the Pusan Pen...
Number lines are used for a number of topics at the elementary level, but they pop up when least expected in higher grades. They help with counting and measurement for younger students and later become part of measures of central tendency (box-and-whisker plots) and graphing inequalities. By using it, you're modeling s...
The major rangeland types of the world are grasslands, desert shrublands, savanna woodlands, forests, and tundra. Each of these rangeland types has several unique plant associations that host a variety of different biota depending on the climate, soils, and human influences. The type of rangeland must be considered whe...
In modern terminology, the button is known as a small fastener, commonly made up of plastic that combines and secures two pieces of fabric. Buttons that serve as fasteners, work by slipping through the thread loop, buttonhole or fabric. Mostly buttons are attached to clothing articles such as dress shirts, coats and ja...
A response to the question: I would like to know what manipulatives you can use to teach decimals to 5th graders. How would you teach multiplying decimals using only manipulatives? The same model pieces you use for ones, tens and hundreds can be used to represent tenths, hundredths and thousandths. When we use those mo...
We all know how important carbon and oxygen are in the development of life on Earth. But millions of years ago, there wouldn't have been enough oxygen for animals to exist. What changed? Between 750 and 580 million years ago, the Earth was almost entirely encased in thick glaciers and ice sheets. When the ice finally s...
James Hubbard, one of several enslaved charcoal-burners, made wood charcoal from dried timber. He stacked 30 cords of wood—3,840 cubic feet—in the shape of a pyramid. Then he covered the wood pyramid with soil or sand to make a kiln. At the base of the kiln, Hubbard lit small fires; the wood charred slowly, with the sm...
Solving First Degree Equations First Degree Equation: An equation characterized by having a single variable ... which may be repeated within the equation more than once ... which is raised to the first power. Note: plain variable "x" is the same as "x1" ... plain variable "x" is the same as "x" raised to the first powe...
Ability is usually described as a relative concept; we talk about the most able, least able, exceptionally able, and so on. If mathematical ability is similar to other physical differences between individuals then we might expect it to approximate to a normal distribution, with few individuals being at the extreme ends...
The giants of marine turtles, leatherback sea turtles are oceanic reptiles that can reach 6 to 8 feet in length and weigh 1,200 to 1,500 pounds. These dark green or black skinned turtles are often speckled with white or pink blotches. Their name comes from their leathery covered carapace, which is actually comprised of...
"Intensive woodworking and tree-felling was a phenomenon that only appeared with the onset of the major changes in human life, including the transition to agriculture and permanent villages," says Dr. Barkai, whose research was published in the journal PLoS One. Prior to the Neolithic period, there is no evidence of to...
Rotation is a length preserving operation and you will be unsurprised to hear that unit vectors and their dot products are the key. In rotation, matrices are just handy containers for the axis which represent our coordinate system, indeed one of the definitions for ‘Matrix’ is ‘container’. In two dimensions a matrix wi...
LIFE ON THE SHORE AND IN THE SEA the first colonists of Surtsey’s coastal environment were diatoms discovered on the sandy beach in August 1964. The dispersal methods used by marine organisms to reach Surtsey are numerous. Algae have planktonic spores, and many marine animals have planktonic larvae that are dispersed b...
Mars has lost an ocean's worth of water, but to find where it all went will take satellites and computer models working in conjunction. Water ice is known to be lurking under the martian surface, while vestiges of carbon dioxide can be found in the polar ice cap and in certain mineral deposits. But many scientists expe...
From movies to museums, the most famous dinosaurs are among the largest. We like superlatives, and want to know what the biggest, fastest, and fiercest dinosaurs are. Yet, just like living animals, dinosaurs came in a variety of shapes and sizes, and a team of paleontologists has just announced, in the Proceedings of t...
Investigating Speed and Velocity In this investigation, students will work in groups to design a model roller coaster, which will be used to clock the fastest speed for the rider (ball bearing/marble) The groups will build roller coaster models and modify and adjust them to find the design that will produce the optimum...
Alpine meadows and rising tree line Alpine meadows are high-altitude grassland communities home to a diverse and unique group of plants, animals and insects. Like forests, alpine meadows can only persist where certain basic conditions, including temperature, sunlight, moisture retention, and soil characteristics, are m...
\|What Is A Front?\| A front is defined by the transition zone or boundary between two air masses with different characteristics including: temperature, wind direction, density and dew point. A good comparison would be a red balloon (representing a warm air mass) and a blue balloon (representing a cooler air mass) collid...
Radar and Sonar William C. Vergara Sometimes, when conditions are right, you can hear your own echo. If you shout "hello," the sound may bounce back at you from a large object. You then hear your own voice coming back. Your returning voice is called an echo. Radar and sonar are electronic devices that use the principle...
When war broke out in Europe, Governor General Georges Catroux, who came to favor a more liberal policy toward nationalism in the French colonies, ordered a general mobilization throughout Indochina and outlawed the Indochinese Communist Party (ICP), arresting several thousand suspected communists. The Sixth Plenum of ...
With wind and solar energy being the two most dominant forms of renewable energy sources conventionally being harnesses all over the world, researchers are now trying to improvise new sources of clean energy, which can be used to produce renewable energy at a low cost. Working on the same lines researchers at Georgia I...
Life Throughout the Oligocene climates in the interior of North America led to fewer sites where plant fossils were preserved, but there is some evidence for more open forests. Grasslands may have developed in some areas but were probably not widespread. Along the west coast of North America, relatively diverse forests...
We humans have a long history of looking to trees for sustenance. For thousands of years, our forests have supplied our food, fuel, and shelter. While we still count on them today to provide those necessities to some extent, we additionally charge them with the task of mitigating the effects of our carbon-spewing, comb...
Mutation is the engine of evolution: organisms would not be able to evolve new characteristics if their DNA did not randomly acquire small changes. But mutations can also be dangerous. If too many life-threatening mutations appear too quickly, an entire species could face extinction. Now a group of Harvard scientists h...
How Small Windmills work Overview: How Small Wind Turbines work The Small Wind Turbines are upwind, horizontal-axis wind machines where the rotor spins in front of the tower about a line parallel with the horizon. It comprises of following main components: - A propeller (also termed as windmill) made out of aerodynamic...
Last year WWF released a report warning that Himalayan glaciers are currently receding at an average rate of 33 to 50 feet (10 to 15 meters) per year. In India (see map) the Gangotri Glacier, the source of the Ganges (or Ganga) River, is retreating at a rate of 75 feet (23 meters) annually. The report also noted that a...
The most notable outcomes of the Berlin Conference in 1884 and 1885 are Articles 34 and 35 of the Berlin Act. These articles address the possession and occupation of the coasts and hinterlands of Africa.Continue Reading The Berlin Conference was headed by German Chancellor Otto von Bismarck. Initially convened to addre...
NASA scientists working with Curiosity have announced that water did indeed flow on Mars at one point in its history — and we're not talking trickles. A newly discovered ancient streambed indicates that the water ran fast and deep, possibly as much as hip deep. The discovery marks a precedent setting achievement for th...
Because they are caused by a reduction in the normal amount of rainfall a region receives, droughts can occur anywhere on the planet. For example, some parts of the Amazon River basin were struck by drought in 2005. However, some places are more susceptible to droughts than others, such as California, the southeastern ...
Describes the life and times of Socrates, a philosopher and teacher in ancient Athens who held that wisdom comes from questioning ideas and values rather than simply accepting what is passed on by parents and teachers. He was a war hero who was executed by his fellow citizens because he wouldn’t compromise his beliefs....
Formative Assessment Tools All those activities undertaken by teachers/and or students, which provide information to be used as feedback to modify the teaching and learning activities in which they are engaged.Dylan Wiliam Why use Formative Assessment in the classroom? There are many reasons why teachers/and or student...
When one object exerts a force on a second object, the second object MUST exert a force back on the first object. An interaction occurs when two objects (or two systems of objects) exert forces on each other. As a result, an interaction is always composed of a PAIR of forces, and we call the two forces in an interactio...
Cholesterol is a waxy substance that comes from your body and from food. It is essential to the human body for proper functioning. If your diet is high in cholesterol, your body will respond by producing less cholesterol and increasing the amount of cholesterol it excretes. However, some people genetically produce too ...
"Farmer's Almanac". Almanac Publishing Co.. 2006. http://www.farmersalmanac.com/astronomy/fullmoonnames.html. Retrieved 2007-01-01. Full Moon names date back to Native Americans, of what is now the northern and eastern United States. The tribes kept track of the seasons by giving distinctive names to each recurring ful...
Lesson 1 (from Chapters 1-7) Even though Holly is kidnapped, her kidnappers feed her and provide her with her crutch. The objective of this lesson is to analyze what is foreshadowed by the kidnappers' behavior. 1) Class discussion: Why does Holly have a crutch? Why is it important for her to have her crutch? What do th...
To study the static characteristic of a transistor (Common Emitter Configuration) A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current a...
If a body hangs off the centre of a wire whose ends attach a negligible distance from each other, then the tension in the wire is half the weight of the body. It is as if each side of the wire holds up one half of the weight--as if they attached to the body at two places, sharing the weight between them. However, if th...
An insertion sort program in Python We saw in the previous work how an insertion sort actually works. The insertion sort algorithm we had didn't really 'roll off the tongue' so we are going to tidy it up and write it in pseudo-code: Get an array called myArray for j = all of the elements in myArray, starting with the s...
Neisseria meningitidis is the species of bacteria that causes meningococcal disease, explains the Centers for Disease Control and Prevention. This disease encompasses meningitis, which is an infection of the central nervous system, and blood infections. Symptoms are often different in children and adults. Neisseria men...
Discovered in the debris pile at a cave site commercially mined for calcite, this skull represented until recently the best preserved skull of any member of this species. SK 48 is the cranium of an adult robust australopith. Most of the skull (minus the lower jaw) is preserved and is relatively undistorted by the fossi...
The history of adoption is extensive — in one form or another, it’s been in existence as long as humans have. Even before it had an official term and was openly celebrated, adoption provided a way for parents who could not care for their children to place them in homes with willing and waiting parents. It’s important t...
They are usually 10 centimetres in diameter, and can be taken from kilometres deep in the ice. Most ice core records come from Antarctica and Greenland. The longest ice cores are 3km deep. The oldest continuous ice core records extend 123,000 years in Greenland, and 800,000 years in Antarctica. Ice cores contain inform...
A frequency table tells you how many items from a data set are in each category. Within a frequency table: - The mode is just the category with the most entries - The range is just the difference between the highest and lowest categories - The median is the category that contains the middle value of the second column -...
The Panama Canal affects the economy of Latin America in a positive way through enhanced ties with North America, greater and more efficient trade and job creation. These implications result in a boost of regional economic activity and an overall increase in the standard of living.Continue Reading The Panama Canal firs...
On November 19, 1863, U.S. President Abraham Lincoln delivered a speech at the dedication of a soldiers’ cemetery in Gettysburg, Pennsylvania. It would come to be regarded as one of the great speeches in U.S. history. On July 1, 1863, the armies of the Confederate and United States clashed at Gettysburg in one of the b...
\|THE ROBINSON LIBRARY\| \|The Robinson Library >> Medicine >> Infectious and Parasitic Diseases\| an infectious disease caused by the Salmonella typhimurium bacterium One common among soldiers during wartime, and in all populated regions, typhoid fever is now relatively rare in areas with modern sanitation practices, but ...
What Other Parents Are Reading A to Z: Cyst, Ovarian A to Z: Cyst, Ovarian May also be called: Ovarian Cyst; Functional Cyst; Follicular Cyst; Corpus Luteum Cyst; Pathologic Cyst An ovarian cyst is a noncancerous sac filled with fluid or semisolid material that develops on or inside a woman's ovary. More to Know The ov...
It is the force that enables us to do any work. To do anything, either we pull or push the object. Therefore, pull or push is called force. Example – to open a door, either we push or pull it. A drawer is pulled to open and pushed to close. Effect of Force: Force can make a stationary body in motion. For example a foot...
This page contains information about color blindness, sometimes called color defeciency. Color blindness is the inability to see certain colors in the usual way. Color blindness occurs when there is a problem with the color-sensing materials (pigments) in certain nerve cells of the eye. These cells are called cones. Th...
Attitudes toward disabilities are often rooted in misunderstanding and misinformation. That is why the basis for all interaction, as with any person, is "Do Not Assume." Starting with that, you can help break down barriers that keep many people with disabilities isolated from society. Just let common sense guide you, a...
2 The water cycle 2.1 Storage of water in the hydrosphere The hydrosphere includes the parts of the Earth that are mainly water, such as the oceans, ice caps, lakes and rivers. Various parts of the hydrosphere can be seen in Figure 2.1. The oceans are blue; snow and ice are white in the ice caps of the Antarctic, and o...
By Penny Paugh The Galápagos Islands off the western coast of South America are renowned as an evolutionary and ecological living laboratory. These Pacific islands can serve as a barometer to gauge how climate and ecosystems interact, and provide a unique window into the relationship between mankind’s rapid development...
Converting a sample or other digital signal to a lower sample rate. When a digital signal is downsampled, it is necessary to apply a low pass filter to the signal to reduce the signal's bandwidth to less than the Nyquist rate of the new sample rate; otherwise, aliasing will result. It is sometimes necessary to downsamp...
A science fair project based on something as everyday as a boat may not be as flashy or messy as other fair project ideas, but the scientific concepts related to buoyancy make for an interesting and impressive set of experiments. Demonstrate these concepts by designing and building your own functioning miniature boat u...
Objective: Prologue - The play deals with three sets of people from three different places: the Maltese, the Spanish, and the Turks. In this lesson the students will determine (1) the geographic locations of these three places, (2) the distance between them and the time it takes to cross that distance, (3) Malta's size...
The Pickerel frog ranges from the Canadian Maritime Provinces south to the Carolinas and then west to southeast Minnesota and eastern Texas. However, there are many gaps in the distribution of these frogs, especially in the southern parts of Ohio, Illinois, and Indiana (Conant and Collins 1998). Pickerel frogs commonly...
Hearing Of Sound: We can hear sound by our ear which is a very delicate organ of our body. It has three parts. (i) Outer ear (ii) middle ear (iii) inner ear The horn-like part of the ear which can be seen from outside is called the outer ear. Near its centre there is an open canal which terminates at a diaphragm called...
Report by NewsroomPlus.com Contributed from Parliament.nz The US has their Constitution, the UK the Magna Carta. For New Zealand one of our most important laws is the NZ Bill of Rights Act, which was 25 years old last week. The Act, passed in 1990, affirms, protects and promotes our human rights and fundamental freedom...
We’ve curated a collection of learning activities so you can participate at home, in school, or at your makerspace. All of these inventions guide you through each step so you can easily adapt them for your learning space. You can start with the beginner challenge from maker librarian Colleen Graves, then move on to the...
In the documentary film, they show how scientific teams from the EOS use a variety of techniques and technologies to collect data on what lies beneath the ground in the areas of the faults. Large trucks with vibrating devices, called VibroSeis, send sound waves into the ground, which then reflect off rock layers and un...
When solving basic algebraic equations, there is no one perfect way, but one tip is to rearrange the equation so it reads x = something. The process is similar to solving a puzzle, and it includes several rules or tips. These tips tell the student what he can and cannot do.Continue Reading Because algebraic fractions a...
Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 3, one copy inherited from each parent, form one of the pairs. Chromosome 3 spans about 198 million base pairs (the building blocks of DNA) and represents approximately 6.5 percent of the total DNA in cells. Identifying ge...
The third unit of the semester was about discovering and exploring new types of architecture around the world. One way in which this was accomplish was through world fairs, which were exhibitions of works from different nations. The first world fair began in 1851 and one of the main architectural structures presented w...
The evolution of whales represents one of the great stories in macroevolution. It's a narrative that has mostly benefitted from an extraordinary series of fossils recovered from rocks around the world, including challenging field areas in Egypt, Pakistan, and India. Over the past 30 years, the diligent work of many pal...
Teaching the alphabet to your kids can be as easy as uh…A…B…C! The first place that you want to start, especially if your kids are new to English, is with the ABC song. Sing it as often as possible. Use it in part 3 of the daily lesson plan. Sing it whenever you have a free moment–when waiting for lunch, or the toilet,...
Your body contains certain blood cells, called white blood cells (WBCs), which fight infections. One subset of these WBCs is called lymphocytes, which can be divided into two main teams: T cells and B cells. The T cells and B cells can be further subdivided into categories, such as helper T cells or memory B cells. In ...
The way different languages sound may depend on the geography of the landscape on which they're spoken, new research suggests. A study of more than 550 languages around the world found that tongues spoken in high-altitude regions contain more sounds called ejective consonants, made with a burst of air, than languages c...
PhD. in Mathematics Norm was 4th at the 2004 USA Weightlifting Nationals! He still trains and competes occasionally, despite his busy schedule. When vectors represent forces, their sum is called the resultant. The resultant of two forces can be found using the methods for adding vectors when the vectors are a geometric...
Harriet Tubman was born around 1820 in Maryland. Her parents were slaves, so she also was a slave when she was born. She had to work even when she was a little child. When she was twelve years old, she suffered a serious injury when an overseer threw a heavy weight which hit her in the head. After that incident she sle...
Enzymes speed up chemical reactions by acting as biological catalysts. They catalyse metabolic reactions in your body, eg digestion and respiration. Enzymes are proteins with an active site which has a specific shape. The active site is the part of the enzyme where the substrate molecules bind to. Enzymes are highly sp...
Weightlessness in the sense we use it is due to the absence of a net external force acting on a body relative to it's surroundings, and may arise in a variety of circumstances. A person standing on the Earth's equator weighs slightly less than they do at the north pole and the south pole. The difference is small – abou...
Click here to download this lesson plan: Officers Lesson Plan Click here to download the student instruction handout: Officers Handout In this activity, students will develop an understanding of officers in the Canadian Expeditionary Force during the First World War by examining the correspondence of officers in the 11...
Course SummaryWork through this self-paced physics course to improve your understanding of essential physics topics. The course's bite-sized lessons and self-assessments can be used to to improve your grades, prepare for upcoming physics exams or simply strengthen your basic physics knowledge. To Start This Course Toda...
Lying on the lawn gazing up at the clouds in the sky and seeing what shape they form used to be a favorite pastime of many kids. There was never a question of what the clouds were called, but sometimes the question arose, “just what makes up that cloud?” This of course brought on other questions such as “how can a plan...
An ancient canyon hundreds of feet deep in places has been discovered buried under a river in Tibet beneath. Geologists say the find rewrites current thinking on how the gorges of the Himalayas formed, becoming extremely steep extremely fast. Researchers from the China Earthquake Administration and the California Insti...
“We have to start with the children!” ~ Mahatma Gandhi Today’s children and teens experience heretofore unknown levels of stress (resulting in anxiety, including competition and test anxiety, anger, behavioral problems, aggression and violence. The research also shows that stress and anxiety can disrupt thinking, inter...
The Medieval History of Italy The middle ages was a traumatic time for the area we now as Italy. It was not a unified single country and was broken up into many independent city-states, provinces of other empires and republics. During this period many foreign powers controlled large areas of the country. The Holy Roman...
What are some examples from the text that show marginalization and how did they impact the play? Answers 1Add Yours Twelve Angry Men is in many ways a love letter to the American legal justice system. We find here eleven men, swayed to conclusions by prejudices, past experience, and short-sightedness, challenged by one...
The origins of the Civil War were rooted in the fundamentally different economic and social structures of the North and South. The Battle of Fort Sumter was the first armed conflict of the Civil War. The Battle of Bull Run, the first major battle of the Civil War, demonstrated to the public that the conflict would not ...
Deborah Meier (an educational reformer, writer, and activist) believes that schools should teach students a specific set of skills in order to be highly effective. The skills, also known as ‘habits of mind,’ include: - Significance (why it is important) - Perspective (what is the point of view) - Evidence (how do you k...
about 1766 BC The Shang dynasty ruled a kingdom centered in the Huang He about 1027 BC The Zhou (Chou) people overthrew the Shang dynasty and set up their own dynasty. The weak central government was supported by semi-independent eastern warlords. about 500 BC Confucius advanced a revolutionary new system of ideas and ...
The Dog Days of summer are approaching. The “dog days” are defined as the period from July 3 through August 11, the sultriest period of summer in the Northern Hemisphere. This is when the Dog Star, Sirius, rises in conjunction (or nearly so) with the sun. The Romans and Greeks associated the hot weather with the star S...
The Southern Limestone/Dolomite Valleys and Low Rolling Hills level IV ecoregion is karst topography – a landscape dominated by limestone and dolostone. Because most of the ecoregion is valley, the karst provides numerous springs and sinkholes. Caverns are found beneath the valley floor, but passable entrances into the...
How did ancient Egypt shape the development of Greek culture? What was the impact of the encounter with Greece on Egypt? How did these completely different cultures interact? These questions have been asked for more than a century. Excavations at the ancient city of Naukratis have been a key source of evidence for prov...
Traditional Japanese practices of government and administration were not suited to an enterprise such as pioneer settlement. Allowing freedom and adaptability rather than following set regulations—which might not fit the conditions—was not the Japanese way. Japan had no tradition of democracy. Moreover, with some Kaita...
Across the country, civil rights activists achieved a number of their goals. These positive outcomes were often the result of government-mandated laws that forced the white establishments to integrate and accept blacks. This was no different in the city of Fort Worth, which not only resisted change but did not take a m...
Blood type or blood group is a medical term. It describes the type of blood a person has. It is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). Blood types predict whether a serious reaction will occur in a blood transfusion. This re...
Seed and fruit, respectively, the characteristic reproductive body of both angiosperms (flowering plants) and gymnosperms (conifers, cycads, and ginkgos) and, in angiosperms, the ovary that encloses it. Essentially, a seed consists of a miniature undeveloped plant (the embryo), which, alone or in the company of stored ...
Sound has proven to be a very fun concept to learn about. We have been able to do some really fun experiments to learn a few key things about sound: - Sound is caused by vibrations - Slow vibrations produce a low pitch - Fast vibrations produce a high pitch - Sound, like light, travels on waves in a straight path - Vol...
(originally published to Helium writing site, now gone) Time zones can be traced back to the early days of rail. Before then, cities and towns set their clocks by the sun, with 12 o’clock noon corresponding to the sun’s highest point. People set their own timepieces by the town clock. Anyone traveling east or west by c...
Children’s learning is understood developmentally. The classroom offers a safe base. Nurture is important for the development of self-esteem. Language is understood as a vital means of communication. All behaviour is communication. Transitions are significant in the lives of children These are taken from the 6 principl...
Susan B. Anthony, an American social reformer and a feminist, played a pivotal role in the women’s suffrage movement in the 19th century. In 1872, she was fined $100 dollars and arrested for voting in her hometown elections at Rochester, New York. She didn’t pay the fine and neither did authorities press any further ch...
- slide 1 of 1 Making lesson plans is tough for new teachers because they are still in the learning phase. However, when an experienced teacher of a mainstream classroom is suddenly given a special student, the teacher undergoes another learning phase. This time, the experienced teacher learns to create lesson plans an...
Progressivism, political and social-reform movement that brought major changes to American politics and government during the first two decades of the 20th century. Goals of progressivism The Progressive movement accommodated a diverse array of reformers—insurgent Republican officeholders, disaffected Democrats, journa...
Igneous rocks are one form of rocks commonly found on the Earth. They are created when hot magma from deep within the Earth cools and hardens. The magma can cool below the Earth's crust, or erupt as lava and cool on the Earth's surface. Igneous rocks are classified by where they are formed. Those that are formed under ...
Back To CourseCLEP Biology: Study Guide & Test Prep 24 chapters \| 224 lessons As a member, you'll also get unlimited access to over 55,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.Free 5-day trial The nervous system is quite c...
Roughly half way into the woman’s menstrual cycle her egg leaves the follicle and a hormone is released to thicken the lining of her uterus. The egg takes about 24 hours to move through the Fallopian tube waiting for a sperm to fertilize it. If a sperm finds its way to where the egg is, fertilization occurs; otherwise,...
If you are looking for some fun reviews of count and noncount nouns with your ESL students, try these simple games. You can count on your students having a great time and learning, too. 11 Fun Games for Practicing Countable and Noncountable Nouns Pictures are a great way to get your ESL students talking. Learners use v...
Stem cells are the basic building blocks of animals, forming in the new embryo and later developing into the various organs and tissues as the fetus grows. Researchers have grown stem cells into many other types of cells, including egg cells, but this is the first time a sperm cell has been developed, the scientists sa...
As my students learn about more Indian tribal regions, I have them work on their interactive notebook pages. Today's topic was Indian tribes of the Desert Southwest. The kids learned about the Hopi, Zuni, Anasazi, Taos, and the Apache tribes. Our discussion included climate, location, food, beliefs, clothing, and shelt...

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