Matter and Energy
Force, Motion, and Energy
Earth and Space
Organisms and Cells
Ecosystems
100

Molecules made up of atoms of two or more elements

What are compounds?

100

The energy of a moving object

What is kinetic energy?

100

Stars begin to form here

What is a nebula?

100

A cell's genetic material is located here

What is the nucleus?

100

These outcompete native species and reduce diversity

What is an invasive species?

200

Elements that are gases, liquids, or dull, crumbly solids that do not conduct electricity

What are nonmetals?

200

This is what we say when there is no net push or pull on an object in any direction

What is an unbalanced force?

200

Warm air rises and cooler air (wind) rushes in to take its place 

What is convection?

200

These structures make up organs

What are tissues?
200

The process whereby organisms in a community change over time

What is ecological succession?

300

This tells us the number of protons and neutrons in an atom

What is the mass number?
300

This distinguishes velocity from speed

What is speed in a certain direction?

300

A spring tide

An unusually extreme tide caused by the Earth, the Sun, and the moon all being lined up

300

This process breaks down sugars to provide energy for a cell's activities

What is cellular respiration?

300

This type of organism goes on the bottom of an energy pyramid

What is a producer?

400

The group to which an element belongs on the periodic table tells us this

What is a group?

400

This is the mathematical statement of Newton's Second Law

What is F = ma?

400

Mid-ocean ridges or rift valleys may form here

What is a divergent boundary?

400

The process in which genetic traits that help organisms survive and reproduce become more common in a population over time

What is natural selection?

400

A living thing on which organisms depend

What is a biotic factor?

500

This is the statement of the law of conservation of mass

What states that matter cannot be created or destroyed?

500

This is what the slope of a line on a distance-time graph represents

What is speed?

500

This tells us the altitude difference between the lines on a topographic map

What is a contour interval?

500

These six categories for organisms are the broadest grouping after domains

What are kingdoms?

500

This decreases at each step up on a food chain

What is available energy?

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