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7th Grade Math Worksheets In this section, you can view all of our seventh-grade math worksheets and resources. These include common-core aligned, themed and age-specific worksheets. Perfect to use in the classroom or homeschooling environment. We add dozens of new worksheets and materials for math teachers and homesch...
About Slave Trade Remembrance Day This day is observed on 23 August every year to remind us about the tragedy of the slave trade in memory of all peoples that is about the tragedy of the transatlantic slave trade. It provides a chance to think about the historic causes and the consequences of the slave trade. Internati...
With the growing demands of standardized testing, many schools do not make social-emotional learning (SEL) a priority. Instead of prioritizing acceptance and positive behavior, schools wait to address conflicts until negative behavior occurs. However, in a society where the news is full of hate for one another, teachin...
The simplest method is to measure the temperature of the mixture of water with any suitable thermometer. Suppose, starting to fill a bathtub or other container, you have put too hot water. Then, discovering his mistake, you immediately turned off the faucet of hot water and added a certain amount of cold. How to determ...
New research on the DNA of a 100,000 year old Neanderthal suggests that early genetic diversity among these hominids was higher than previously thought. For some 300,000 years, Neanderthals were the only representatives of the genus Homo in Europe. Until, that is, modern humans appeared in Europe – at around 40,000 BC....
Understanding and helping your child regulate their emotions "My child is so angry; I do not recognise him anymore." This is a worry that is often heard at Child and Youth Therapy Wereldkind. After the move to a new country children may experience strong emotions, like anger. How can you as a parent help your child to ...
All students are aware of some form of Latinization in America. The Latino presence in the US is so significant that students are usually able to identify (and often enjoy) a variety of people, foods, programming and music from this widely encompassing ethnic group. Whether they eat tacos, watch Dora the Explorer or si...
(1876–1948). The founder of Pakistan was the Indian Muslim politician Mohammed Ali Jinnah. After Hindus and Muslims in India failed to work together, he was the main force behind India’s partition in 1947 when Pakistan emerged as a separate Islamic nation. Jinnah was born in Karachi (now in Pakistan) on December 25, 18...
Born on the Grest Farm in Liberty County, Georgia, on August 6, 1848, Susie Baker King Taylor was raised as an enslaved person. Her mother was a domestic servant for the Grest family. At the age of 7, Baker and her brother were sent to live with their grandmother in Savannah. Even with the strict laws against formal ed...
Hatshepsut (Hat-shep-soot), the first important female ruler known to history, lived a thousand years after the pyramids were built and seventeen centuries after the Egyptians had begun writing their language in hieroglyphs. She ruled Egypt for two decades (ca. 1473–1458 B.C.) during Egypt's Dynasty 18. Although less f...
Eighth Dynasty of Egypt |ca. 2181 BC–ca. 2160 BC| |Common languages||Egyptian language| |Religion||ancient Egyptian religion| |Historical era||Bronze Age| |ca. 2181 BC| |ca. 2160 BC| The Eighth Dynasty of ancient Egypt (Dynasty VIII) is a poorly known and short-lived line of pharaohs reigning in rapid succession in the...
In the last chapter, you learned how to add headings and paragraphs to a text in order to add greater meaning and structure to an unstructured text. The base of last chapter's example was a Wikipedia article, in which you may have noticed some text that you consider "bold" or "italicized." In bold, you see "polar bear"...
The universe is big and full of all manners of objects that range from dust particles to planet-sized megastructures. One of the most common objects that are found almost anywhere in the galaxy are the asteroids. Asteroids are defined as minor planets with the bigger ones being called planetoids that are formed from wh...
Pythagoras Theorem – Formula, Definition With Examples Welcome, math enthusiasts! Here at Brighterly, we are dedicated to making math engaging and accessible for kids around the globe. In today’s journey into the magnificent world of mathematics, we’ll be exploring the remarkable Pythagoras Theorem, a cornerstone of ge...
In August 1619, an English ship landed on the shores of Virginia with some 20 African captives aboard. Four hundred years later, the date is being commemorated as the beginning of the age of slavery in North America. A plaque along the boardwalk in Virginia’s seaside town of Hampton, once known as Point Comfort, reads:...
Jawaharlal Nehru was born on November 14, 1889 at Allahabad. Motilal Nehru, who was one of the greatest legal luminaries during his time with a lucrative practice, was the father of Jawaharlal Nehru. Ferdinand T Brooks, a theosophist, became a great influence for the young Jawaharlal. At the age of 13, Nehru joined the...
Many of you know that Dr. Martin Luther King, Jr. was a crusader for Civil Rights. He had a dream. In some ways, that dream became a reality through the passage of the Civil Rights Act of 1964. The Declaration of Independence declared that “All men are created equal.” However, when the country was first formed this quo...
Live performance by "We've Known Rivers", Anthony Gibbs. African Americans have served in every major military conflict in which the United States has fought. For many years, the American military--like the country at large--was segregated. Still, black men and women served their country valiantly. Among the most well-...
Drought and Overgrazing: When drought conditions persist in agricultural areas, it can lead to overgrazing of watershed lands, as there is not enough vegetation to support the normal grazing habits of livestock. Overgrazing can occur when there is not enough vegetation to support the normal grazing habits of livestock,...
Observing how children act in their lives help educators determine how to create an environment that promotes learning and development. More specifically, by thoroughly documenting and tracking children’s behaviour, educators can see how each child reacts to different situations, their interactions with others, and the...
Screening is a way of finding out if people have a higher chance of having a health problem, so that early treatment can be offered or information given to help them make informed decisions. What is screening? Screening is a way of identifying apparently healthy people who may have an increased risk of a particular con...
Education improves people’s lives in many ways. Not only does it eliminate poverty and hunger, it also enables people to hone critical thinking skills and improve communication skills. Education improves people’s chances of securing better jobs by helping them meet basic job requirements. Listed below are some of the m...
By the end of this section, you will be able to: - Calculate coefficient of friction on a car tire. - Calculate ideal speed and angle of a car on a turn. Any force or combination of forces can cause a centripetal or radial acceleration. Just a few examples are the tension in the rope on a tether ball, the force of Eart...
Panama was claimed by the Spanish in 1501. Nearly two decades later, the City of Panama was established. A part of New Granada after 1739, Panama (and the rest of New Granada) left the Empire over 80 years later. At that point, Panama became part of Gran Colombia. Panama was viewed as a potential route between the Atla...
Social Construction of Race Society perceives and regards those differences identified in people as necessary. Similar characteristics that unify the people are ignored and not looked upon. As a result, racial formation manifests through the process of social-historical injustice. In addition, racial groups are inhabit...
We explain what the solute and solvent are and what is the role of each. In addition, several examples of these two components. What are solute and solvent? In chemistry , solute and solvent are understood as the two components that make up a solution , that is, the two elements whose union produces a homogeneous mixtu...
Law Of Supply Definition In Economics – You’re about to launch a new product, but you’re not sure how much to produce or charge. Unsold items may be left behind because they are too expensive or too expensive. If the price is too low or insufficient, the product may be lost. It all depends on the demand for the product...
In a unique approach, the University of Alberta (U of A) developed a fuel cell that can combine natural gas, CO2 and air to produce carbon monoxide (CO), water and electricity. Where traditional conversion methods consume energy, this reaction creates it. It also creates water and CO, an important and profitable commer...
Earthquake Waves are or seismic waves are the vibrations generated by an earthquake or similar energetic sources such as explosions. These are propagated within the Earth or along its surface. All the earthquakes take place in the Lithosphere. A seismograph device records the waves that reach the surface. Earthquake wa...
A healthy, balanced diet is just as important to provide your mouth with the right nutrients, but limit the foods that can cause problems. Acidic and sugary foods damage your teeth through both tooth decay and erosion. Decay occurs through sugars breaking down into acids by bacteria in plaque – an indirect acid attack ...
The Ottonian Renaissance produced some of the greatest, most lavishly adorned and bound masterpieces of the entire Middle Ages. It was a rich but relatively short-lived renaissance associated with the Ottonian dynasty (919-1024), but which outlived them, gradually evolving into the German Romanesque. Originating from o...
The Three Attributes of a Color To accurately describe a color and differentiate it from another there are 3 attributes to measure. When the average person says “color” they are actually mean hue. The hue of a color is its particular light wave energy frequency. Remember, light is waves of energy, and white light is co...
What is Oral Communication? Oral Communication is the process of transmitting ideas and information through spoken words. It is a verbal form of communication. The communication can be direct, i.e. person face to face communication or indirect via electronic i.e. call or video call which uses digital devices like mobil...
In the beginning of the modern electric era, there were Hybrid Electric Vehicles (HEVs) You may recall the Toyota Prius when it first came out. It had both mechanical (gas engine) and electric (battery) propulsion, and it was able to automatically flip back and forth between those two power sources or combine them for ...
Blood is a connective tissue comprised of various components, each with its own unique structures and functions. The three main components of blood are red blood cells (RBCs), white blood cells (WBCs), and plasma. White Blood Cells (Leukocytes) White blood cells, also known as leukocytes, are a vital component of the i...
Alien Planets Are Even Less Habitable Than We Thought It turns out, Mars was always fated for a waterless destiny. New observations from robotic explorers like NASA's Perseverance and Curiosity have revealed much about the ancient past of the Red Planet, where liquid water flowed throughout the planet's surface. It use...
How hot is it inside the sun? How big is the red dwarf next door? And how long does Betelgeuse have before it explodes as a supernova? It’s all easy to calculate with just four seemingly simple equations. The interior of a star is predictable, both far into the past and into the future. But, of course, nothing in the u...
This book provides an engaging, in-depth yet understandable look into the origins of the Underground Railroad as well as its operation and the people that made it successful. Full of attractive graphs, vocabulary sidebars and activities, readers will not only gain a thorough knowledge of the Underground Railroad, but t...
Diamond prospectors know that the secret to finding diamonds is to locate rocks called kimberlites. A new study in Nature this week may help them focus their search a bit more closely, and also reveals a new understanding of the Earth's mantle. Kimberlites – named after the South African town of Kimberley where they we...
What is pre Renaissance art? The Pre-Renaissance is also called Proto-Renaissance, which occurred during the 1300s (14th Century CE). It was also called the trecento period, meaning “300” in Italian. This period also included the Gothic Art style, more so the later International Gothic style, and the Sienese School of ...
After the painting by Franz von Lenbach. Count Von Moltke From a photograph from life. Proclamation of King William of Prussia as Emperor Germany, at Versailles After the painting by Anton von Werner. William Ewart Gladstone After a photograph from life. On the death of George IV. in 1830, a new political era dawned on...
Read the following and then describe/ illustrate the events that led to the Russian Revolution and what happened soon after ( 16 terms). Use the storyboard provided and draw additional boxes as needed. Feel free to use the back of your papers as well. Give this assignment an interesting title. MAIN IDEA: REVOLUTION Lon...
Maldives is an island country situated in the Arabian Sea. The first settlement in the cluster islands can be traced to more than 2,500 years back with the Hindus and Buddhist fishermen and sailors arriving on the islands from India as early as 500 BC. The settlers came in small numbers and did not make any attempt to ...
Make sure you thoroughly understand the following essential ideas: - Describe the properties of water that make it an ideal electrolytic solvent. - Describe the general structure of ionic hydration shells. - Explain why all cations act as acids in water. - Describe some of the major ways in which the conduction of elec...
At the end of the year I’m at the end of the alphabet, but these letters are actually about the sex chromosomes of birds. Mammals have sex chromosomes called X and Y which determine the sex of the individual. A mammal embryo is born female if it has two of the same chromosomes: XX. It’s male if it has two different chr...
What is Facts for Life? Using Facts for Life Safe Motherhood and Newborn Health Child Development and Early Learning Nutrition and Growth Coughs, Colds and More Serious Illnesses Emergencies: Preparedness and Response PDF and Word versions Resources Why it is important to share and act on this information All children ...
For the first time, researchers were able to build a system in which a single photon could be transmitted while all others were blocked. The research conducted at MIT is believed to be a milestone in quantum computing as the scientists were able to convert a laser beam into a stream of photons, send it into a cloud of ...
Post Civil War Period In the post Civil War period, known as the Age of Big Businesses, or as the Gilded Age period by some, many aspects of the USA were influenced by large businesses and their owners. In this period, businesses became powerful and controlling on the economy, they created different labor conditions, a...
A futuristic "blended wing" plane developed by NASA has passed crucial wind-tunnel tests. These reveal that engineers may have overcome some of the controllability challenges associated with the revolutionary aircraft design. Designs for blended wing planes are a dramatic leap from that of today's passenger jets - inst...
Excavation of materials from the Earth's crust, including those of organic origin, such as coal and petroleum. Modern mining is costly and complicated. First, a mineral vein that can likely produce enough of the desired substance to justify the cost of extraction must be located. Then the size of the vein or deposit is...
- Get to know their body language: Understanding your learner's natural cues can help you know what they like and what makes them uncomfortable. - Acknowledge greeting rituals: Greeting rituals are important in most animal species. Follow your learner's lead on how they like to engage in greetings and show that you're ...
Ways to Reduce Carbon Dioxide Emissions There are three primary methods for reducing the amount of carbon dioxide in the atmosphere: employing energy efficiency and conservation practices; using carbon-free or reduced-carbon energy resources; and capturing and storing carbon either from fossil fuels or from the atmosph...
Doing the 'Stereocilia Wave' Are the hair cells in your inner ear doing a line dance, or is it more like the wave? Whenever you hear a sound, clusters of tiny strands sprouting from the tops of key sensory cells in your inner ear begin to move, which triggers an electrical signal that rapidly scuttles off to your brain...
Chapter One: An Acoustics Primer 1. IntroductionAll musicians work with sound in one fashion or another, yet most have little understanding of its properties. Computer musicians, in particular, can benefit in myriad ways from an understanding of the mechanisms of sound, its objective measurements and the more subjectiv...
For many parents, figuring out how to get kids to eat vegetables can become a truly daunting task. A recent study from Stanford University offers a new solution to moms and dads struggling with picky eaters: try teaching kids about nutrition first. The research, published last month in Psychological Science, found kids...
There is no Moore's Law for batteries, but that doesn't mean you can't apply the same advances that have yielded increasingly powerful computer chips to the problem of powering those chips. This month, Marc Madou, a microelectromechanical systems expert at the University of California, Irvine, and his collaborators pla...
HERBARIA. Herbaria are archives of plant life. Most contain specimens of angiosperms, or flowering plants, but they can also include algae, mosses, liverworts, ferns, gymnosperms, or even fungi. Specimens are usually dried, but plant parts that do not dry well can be stored in preserving liquid. Herbarium specimens con...
Fossil Glossopteris leaf associated with coal deposits and derived from glossopterid forests of the Permian age. The end-Permian mass extinction saw a loss of 90% of the species in the ocean and about 70% of vertebrate families on land (Erwin 1994).† The event is dated at 251 million years ago.† The precise timing and ...
Rights or Individual Rights The constitution of a democracy guarantees the rights of the people. A right is a person’s justifiable claim, protected by law, to act or be treated in a certain way. For example, the constitutions of democracies throughout the world guarantee the political rights of individuals, such as the...
Selecting a Site for Field Study Head outside for an intensive field study and learn how to map a site. Students are introduced to the techniques used by scientists in the field—how to select a site for study; and how to measure, mark, and map it. They then apply these concepts to an actual site, selected for a study o...
Government is the way people organize themselves to make and enforce rules, accomplish collective goals, and provide benefits that they cannot provide on their own. Governments exist at every level, from the local school board to the federal government. In the United States, our government consists of three branches: l...
World War I may have been inevitable, but it was a single, surprising event–the assassination of Archduke Ferdinand–that finally precipitated it. On a more humble level, the crystallization of ordinary salt from salt water is a major molecular rearrangement that is also triggered by a single, unpredictable event. The t...
But that answer is based on a misconception that's been around for 70 years--a misconception that came out of a Bureau of the Census report in the 1920s. The report suggested that the point that minimized the sum of people's travel to the central facility was the centroid. In fact, it isn't. The better answer is a) wit...
History of Washington Reveals Its Unique Role WASHINGTON — THE role of Washington, D.C., in American politics is an oddity of history dating back to 1783. That year, Congress was meeting in Philadelphia when 280 soldiers from the Continental Army marched on Independence Hall to demand back pay. Pennsylvania state offic...
“IN Fourteen-hundred and ninety-two, Columbus sailed the ocean blue.” With three ships, the Niña, the Pinta and the Santa Maria, and about 90 men, Columbus sailed westward from Palos harbor, Southern Spain on August 3, 1492. All these ships were second-hand and were not intended for exploration. They were modest-sized ...
Arkansas is the 25th State Admitted to the Union On June 15, 1836, Arkansas became the twenty-fifth state. Native Americans first inhabited the state and created a thriving culture along the Mississippi River around 500 A.D. In the sixteenth and seventeenth centuries, both the Spanish and the French explored the region...
Rocks are important. They are the things that the Earth is made of so students need to learn about them. Geologists classify rocks into groups depending on how they are formed and what their major components are. Many rocks can be thought of in the same terms used when someone is baking cookies. You have the batter and...
May 14, 1998 A weekly feature provided by scientists at the Hawaiian Volcano Observatory. Youngest flows in Haleakala Crater about 800-1,000 years old The story is told of how Maui snared the sun, holding it hostage atop Haleakala until he slowed its passage across the sky. One result of this slow burn is a barren, roc...
One of the earliest and most important religious texts of ancient India, the Rig-Veda is the oldest of the four collections of hymns and other sacred texts known as the Vedas. These works are considered the "sacred knowledge" of the Aryans, a people who invaded India in about 1600 B.C. AS the Aryans settled in India, t...
devolutionArticle Free Pass devolution, the transfer of power from a central government to subnational (e.g., state, regional, or local) authorities. Devolution usually occurs through conventional statutes rather than through a change in a country’s constitution; thus, unitary systems of government that have devolved p...
Lisa, Cheryl, Linda, and Cliff Day 2, Stop 1.5 What captures your attention in these cut-aways next to Hat Creek? We saw many different layers. Starting from the bottom (which is the oldest), we saw a sandy layer. Directly above that, was a layer of gravel with big rounded rocks – some as big as your head. Above the gr...
Anyone who knows many children and adults with Asperger Syndrome (AS) knows that every person's manifestation of the condition is very different. While they share significant social disability, some are very successful academically, some struggle with accomplishing work; some have intense intellectual interests that le...
How Microwave Ovens Work The invention of the microwave is a fantastically simple concept. Microwaves have a frequency that can penetrated water, fat, and sugar molecules and excite them. For a molecule to be excited the electrons "orbiting" the nucleus have to jump up energy levels. When this occurs the atom starts to...
August 23, 2014 Icebergs Strip Away Rich Antarctic Habitat Posted on Jun 23, 2014 By Alex Kirby, Climate News Network This piece first appeared at Climate News Network. LONDON—A once-rich habitat in the Antarctic has become an impoverished zone as icebergs, increasingly breaking free from the surrounding sea ice becaus...
The role of blood vessels is to carry blood and its constituents around the body. There are 3 types of blood vessel: - Arteries - Are muscular tubes with thick walls. They are under considerable pressure from the force of the pumping action of the heart. There are three components to artery walls: - the inner lining, o...
April 2, 1998 A weekly feature provided by scientists at the Hawaiian Volcano Observatory. Where will the next Hawaiian volcano be? As we all know, there are no facts about the future. We cannot know for sure what will happen tomorrow, much less next year or 1,000 years from now. How, then, can we be so bold as to gues...
Who Were the Dunkers The Dunker movement began in Germany in the early eighteenth century. The peace treaty that ended the Thirty Years War ( 1618 –1648 ) recognized three state churches. Dissenters were persecuted and forced to meet in communities where some degree of tolerance prevailed. In 1708 the denomination was ...
This illustration shows the global pattern of carbon degassing. Units are millions of tons of carbon/year. The discharge of carbon dioxide (CO2) from submarine volcanoes remains unmeasured. Click image for larger view and more details. An example of a detailed near-bottom autonomous benthic explorer (ABE) survey. At th...
Because of its immense practical value for agricultural societies, many early cultures developed something that resembled a science: the observational study of the motion of bodies around the solar system. Four hundred years ago, planetary science also became the first to have a solid theoretical underpinning, as Keple...
These lessons are designed to engage and motivate students' interest in the political process and social media tools. 1.1 Lesson Plan (255 KB pdf) Students create their own blogs, which they can use throughout the lessons in this guide – and beyond – to share their views on political issues, candidates and campaigns; p...
Welcome to the wikibook course on written Chinese. This course aims at teaching Chinese for all dialects. The Chinese spoken language is extremely diverse. It can be mainly divided into Mandarin and Cantonese, not mentioning the diverse dialects. The map on the right can give you an idea of the diversity of the Chinese...
Encryption In most cases, files on a storage unit are not needed to be secure. Most people might believe that files on their computer are safe, especially if they enter a password to log in. In networking, a network drive, a storage drive on another system, should have permissions set that only the specific user (and a...
is an obsolete concept involving vertical crustal movement that has been replaced by plate tectonics to explain crustal movement and geologic features. Geosyncline is a term still occasionally used for a subsiding linear trough that was caused by the accumulation of sedimentary rock strata deposited in a basin and subs...
Asthma is a disease of the respiratory system, which causes swelling and narrowing of the airways. This article discusses asthma in children, also called pediatric asthma. For a more general discussion about the disease, please see asthma. Pediatric asthma; Asthma - pediatric Asthma is caused by swelling and inflammati...
In 1643, workers unearthed some huge bones in a Belgian field. The naturalists who studied them were convinced they had come from a humanlike giant. Their length, after all, tallied with a biblical reference to Og, a giant king supposedly slain by Moses. In 1728, British anatomist Hans Sloane identified similar remains...
The Clean Water Act The basis of the CWA was enacted in 1948 and was called the Federal Water Pollution Control Act, but the Act was significantly reorganized and expanded in 1972. "Clean Water Act" became the Act's common name with amendments in 1977. The goal of the Clean Water Act is to restore and maintain the chem...
To design and simulate a Clamper circuit. A clamper is an electronic circuit that prevents a signal from exceeding a certain defined magnitude by shifting its DC value. The clamper does not restrict the peak-to-peak excursion of the signal, but moves it up or down by a fixed value. A diode clamp (a simple, common type)...
From CreationWiki, the encyclopedia of creation science The Horse, is a large land mammal notable for its speed, strength, and endurance. Horses are members of the Equidae family, which also includes zebras and asses. Like all equids, the horse is extremely well designed to traveling long distances with great efficienc...
Margaret Washington on the impact of the Stono Rebellion |Resource Bank Contents| Q: Tell me about Stono itself. What was the impact of that rebellion at that time, and how did it transform ideas about slavery for South Carolina and the nation? A: Stono is important because it changed the face of slavery in Carolina, a...
Basics of Triads and Chords on the Guitar For example, the G major scale is G-A-B-C-D-E-Fs. If you start counting from G, then the 3rd is B (G-A-B, 1-2-3). If you start counting from A, then the 3rd is C (A-B-C, 1-2-3). A triad is a group of three notes that are all a 3rd apart. For example, in the G major scale, G and...
Scientists have had a basic understanding of how life first popped up on Earth for a while. The so-called “primordial soup” was sitting around, stagnant but containing the basic building blocks of life. Then magic happened and we ended up with life. It’s that “magic” that has been the sticking point for scientists, but...
The tenets of sustainable agriculture include satisfying human food needs, enhancing environmental quality and efficiently using non-renewable resources. To achieve these ends, sustainable producers abstain from using chemical pesticides and fertilizers, practice crop rotation and plant appropriate cover crops that pre...
Roaches hold their breath to stay alive Australian scientists have discovered another reason why cockroaches might well inherit the earth after humans are long gone. "Several decades ago, scientists discovered that some insects hold their breath," says White. "But it's not been clear why they do this." In the case of b...
Take turns with your child rolling a die twice. The first throw determines how many large circles a player will draw on his page, and the second throw designates how many X’s are to be drawn within each circle. The player then counts up his X’s and writes the total at the bottom of the page. The second player does the ...
Dr Harold Urey, of the University of Chicago, believes that the surface of the moon is covered by dust created by the impact of a mighty flock of planetesimals. Moon dust, of course, is not a new idea. Mr Thomas Gold, also based in the United States, considers that the stuff is being continuously eroded from the lunar ...
In 1776, the Continental Congress appointed a committee to create a plan for a central government. The committee quickly wrote the Articles of Confederation, which created a loose alliance of the states. While the Articles were drafted quickly, ratification of them was delayed until 1781. The primary sticking point con...
- What was the Holocaust? - Judaism and Jewish life - What is antisemitism? - How did the Nazis gain power? - Life in Nazi-controlled Europe - What were camps? - What was the Final Solution? - How did people respond? - Survival and legacy On arrival at concentration camps prisoners had their clothing taken away, often ...
On 1 May 1707, the Kingdom of Great Britain was created by the political union of the Kingdom of England (which included Wales) and the Kingdom of Scotland. This event was the result of the Treaty of Union that was agreed on 22 July 1706, and then ratified by both the Parliament of England and Parliament of Scotland ea...
The two-atom hydrogen molecule is perhaps the simplest molecule in existence, but, surprisingly, scientists still don’t know some basic information about it, such as how it responds to very high pressures. This is particularly true for solid hydrogen, where, for varying densities and at very low temperatures, scientist...
Copyright © University of Cambridge. All rights reserved. Why do this problem? Many standard questions give exactly the information required to solve them. In this problem, students need to go in search of the information and work in a systematic way in order to make sense of the results they gather. The problem could ...