science
This occurs when two or more substances are physically combined but not chemically joined, making them easy to separate—like a bowl of trail mix.
What is a mixture?
These are official changes or additions made to the Constitution; the first ten are famously known as the Bill of Rights.
What are amendments?
This term is used to describe two geometric figures that have the exact same size and shape.
What is congruent?
This specific type of mixture is created when one substance is completely and evenly dissolved into another, such as salt water.
What is a solution?
This term describes a person who actively fought to end the practice of slavery in the United States.
What is an abolitionist?
This flat surface extends infinitely in all directions and is often visualized as an endless piece of paper.
What is a plane?
In a solution, this is the name for the substance that gets dissolved, like the sugar stirred into a cup of tea.
What is the solute?
These laws were passed in the South after the Civil War to specifically restrict the rights and freedoms of African Americans.
What are Jim Crow Laws?
This figure is formed by two rays sharing a common endpoint known as a vertex.
What is an angle?
This is the substance that does the dissolving in a solution; water is often referred to as the "universal" one.
What is the solvent?
Taking place between 1916 and 1970, this was the mass movement of millions of African Americans from the rural South to Northern and Western cities.
What was the Great Migration?
This measurement represents the number of square units needed to cover the entire inside of a 2D shape.
What is area?
This tiny particle lives in the nucleus of an atom and carries a positive ($+$) charge.
What is a proton?
This principle states that government power comes from the consent of the people, often used to let territories vote on whether to allow slavery.
What is popular sovereignty?
This is the specific term for two angles whose measurements add up to exactly 90 degrees
What are complementary angles?
This subatomic particle is found in the center of the atom but carries no charge at all—it is neutral.
What is a neutron?
This act of formally leaving the Union was performed by several Southern states, directly leading to the Civil War.
What is secession?
To find this, you calculate the total distance around the outside boundary of a polygon.
What is perimeter?
These super-light particles have a negative charge ($-$) and zip around the outside of the atom's nucleus.
What are electrons?
To study history, researchers use these original objects or documents—like diaries, letters, or photographs—created during the time being studied.
What are primary sources?
These are two angles that add up to 180 degrees, effectively forming a straight line.
What are supplementary angles?
This special number defines an element and tells you exactly how many protons are in its center.
What is the atomic number?
This Cold War foreign policy was designed by the U.S. to stop the spread of communism into new countries.
What is containment?
Expressed as a^2 + b^2 = c^2, this rule is used to find the missing side length of a right triangle.
What is the Pythagorean Theorem?
To find this value, you must add the total number of protons and neutrons found inside the nucleus.
What is the mass number?
This 1887 law aimed to assimilate Native Americans by breaking up tribal lands into individual plots
What is the Dawes Act?
These are lines in the same plane that are always the same distance apart and will never, ever intersect.
What are parallel lines?
This is a version of an element that has the same number of protons but a different number of neutrons, making it a "heavier" or "lighter" twin.
What is an isotope?
This is the process of the world becoming more interconnected through the exchange of technology, trade, and culture.
What is globalization?
This term describes lines or segments that intersect to form a perfect 90 degrees right angle.
What is perpendicular?