Laws of Motion
Chemical Reactions
Earth and Space
Weather and Climate
Life Science
100

This force pulls objects toward Earth.

What is Gravity?

100

Matter cannot be created or destroyed.

What is the Law of Conservation?

100

The force that keeps planets in orbit around the sun.

What is gravity?

100

Short-term atmospheric conditions.

What is weather?

100

Organisms that make their own food.

What are producers?

200

An object at rest stays at rest unless acted on by this.

What is an unbalanced force?

200

Reactants are found on this side of a chemical equation.

What is the left side?

200

The star at the center of our solar system.

What is the Sun?

200

Long-term average weather patterns.

What is climate?

200

Organisms that eat other organisms.

What are consumers?

300

Force = mass × ?

What is acceleration?

300

Balancing equations ensures this stays the same.

What is mass/number of atoms?

300

The stage of a star after it runs out of hydrogen.

What is a red giant?

300

Warm ocean water fuels this type of storm.

What is a Hurricane?

300

Organisms that break down dead matter.

What are decomposers?

400

If mass increases but force stays the same, acceleration does what?

Decreases

400

What is the coefficient in: 2H₂ + O₂ → 2H₂O?

What is 2?

400

Diagram used to classify stars by brightness and temperature.

What is the H-R Diagram?

400

The bending of wind due to Earth’s rotation.

What is the Coriolis Effect?

400

What happens to energy as it moves up a food chain?

What is it decreases?

500

“For every action, there is an equal and opposite reaction.”

What is Newton's Third Law?

500

Reaction where two substances combine into one.

What is synthesis?

500

 Theory that the universe began with a rapid expansion.

What is the Big Bang Theory?

500

El Niño causes wetter conditions in this part of the U.S.

What is the southern U.S.?

500

Effect of removing a predator from a food web.

What is population imbalance (prey increases, ecosystem disrupted, Etc.)?