Junior high is often a challenging time, whether you've done your homework or not. See if you are smarter than an 8th-grader with this HowStuffWorks quiz!
Acute angles are smaller than right angles. Right angles measure exactly 90 degrees.
The first 10 Amendments to the US Constitution are known as The Bill of Rights. These protect the freedoms of speech and religion, right to bear arms and a number of other rights of American citizens.
This 1960 novel was written by Harper Lee. This modern classic centers around white children in a small southern town whose lawyer father represents a black man who has been falsely accused of a crime.
Testosterone is what gives men the features associated with males, such as sharper features, more defined muscles and facial hair. Women have this hormone, too, but at much lower levels.
A cell is the smallest unit of life that can replicate independently. All living things on earth are made of cells.
Plate tectonics is a scientific theory that Earth's outer shell is divided into a number of large and small plates that glide on top of the Earth's mantle. The movement of these plates creates the Earth's geographic features, like mountains and rifts.
These world religions all share common roots in the Middle East. This is why they all consider Jerusalem an important holy city.
Martin Luther King Jr was an American activist, Baptist minister and one of the leading figures of the Civil Rights Movement. Between 1957 and 1968 he spoke over 2,500 times in the name of furthering equality for African Americans.
The attack on Pearl Harbor was a surprise attack by Japan on the US naval base at Pearl Harbor, Hawaii. It occurred on December 7, 1941.
William Shakespeare wrote 154 sonnets. These cover themes like love, death and beauty and are addressed to both men and women.
About 70% of the Earth's observable surface is covered in water. This includes oceans, lakes, rivers, seas and ice.
Anne Frank and her family hid from the Nazis in an attic, where she wrote in her diary. Unfortunately, they were caught and most of them, including Anne, died in Nazi concentration camps.
India was ruled by Great Britain for about 200 years. India has been an independent country since 1947.
Mercury is both the smallest planet in our solar system and the closest to the sun. Its orbital period around the sun is only 88 days long.
Photosynthesis is the process by which many plants, algae and microorganisms turn the energy from light into usable energy for themselves. It is essentially how plants "eat."
This 1844 novel by Alexandre Dumas was originally written in French. In it, a man goes on an intricate quest for revenge against those who destroyed his life.
Dairy is one of the classic food groups. Dairy is high in calcium, which is important for the health of your teeth and bones.
Susan B. Anthony is known as one of the leading figures of the Women's Rights Movement. She is known mostly for her role in gaining women the right to vote.
Tectonic plates are constantly moving, their boundaries coming closer together in some places and farther in others. These transitional spaces are what form volcanoes.
World War II was fought between two groups of countries. These were the Axis Powers, which included Italy, Germany and Japan, and the Allies, which included the Soviet Union, US, Britain, India and China.
The Earth formed over 4 billion years ago. This is based on evidence from the radiometric age-dating of meteorites.
The Louisiana Purchase was an 1803 deal between the US and France, in which the US bought over 800,000 square miles of land west of the Mississippi River. Thomas Jefferson was the president from 1801-1809.
The First Amendment covers freedom of speech, press and religion. It also grants US citizens the right to peaceably assemble and petition the government to express grievances.
This 1951 novel by J.D. Salinger follows the misadventures of Holden Caulfield, a troubled teen playing hooky in New York City. It is written from his perspective.
Vitamin C is key in maintaining a healthy immune system. It can be found in citrus fruits like oranges, lemons and limes.
A prime number is a whole number larger than one. These numbers can only be divided evenly by one and themselves. Examples include 2,3,7 and 11.
The Ring of Fire is an area of high seismic and volcanic activity in the basin of the Pacific Ocean. More than 75% of the world's active and dormant volcanoes and 90% of the world's earthquakes occur due to the collision of tectonic plates beneath this region.
Romeo Montague and Juliet Capulet come from enemy families. It is for this reason that their secret relationship is ultimately doomed in this classic Shakespearean play.
The number of calories can be found on the back of most packaged foods. This refers to how much energy the food contains.
There are about 200 sovereign states, or countries, on earth. It is hard to pin down an exact number, as the sovereignty of over a dozen countries is disputed.
Archduke Franz Ferdinand was assassinated on June 28, 1914, in Sarajevo, Bosnia and Herzegovina. He was the heir to the Austro-Hungarian throne and his assassination by a member of the Black Hand, a secret Serbian military society, was one of the major causes of World War I.
Most girls get their first period by age 12. 90% of American girls start menstruation by age 14.
Gandhi is famous for his use of nonviolent civil disobedience to gain India's independence from Great Britain. His tactics inspired social movements around the world.
The original 13 colonies formed along the east coast of what would become America, beginning in 1607 with the Jamestown settlement in what would become Virginia. California, a west coast state, did not gain statehood until 1850.
Rocks are classified by how they formed. Igneous rocks are formed when magma or lava cools and solidifies, sedimentary rocks are formed when various debris solidifies under pressure, and metamorphic rocks are formed when rocks of the other types become changed by temperature and pressure shifts.