Chemistry
Cell Biology
Matter and Energy
Earth
Space
100

This is the smallest unit of matter that has distinct properties. 

What is an atom?

100

This is the name for the physical and chemical system that protects us from diseases.

What is the immune system?

100

This is the force that pulls objects towards the center of the Earth.

What is gravity?

100

This is the name of the layer of gases surrounding the Earth.

What is the atmosphere?

100

This is the largest planet in the solar system.

What is Jupiter?

200

This is the chemical formula for water.

What is H2O?

200

This is what the process where plants use sunlight to convert carbon dioxide and water into glucose is called.

What is photosynthesis?

200

This is the state of matter that has no set shape or volume. 

What is gas?

200

This causes day and night on Earth. 


What is the rotation of the Earth?

200

This is the name of the galaxy that contains our solar system.

What is the Milky Way?

300

This is the lightest element.

What is hydrogen?

300

This is what the molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms is called

What is DNA?

300

This is what the process of water turning into gas is called.

(What is evaporation?)

300

This causes the tides in the oceans.

What is the gravitational pull of the Moon?

300

This is an object with such intense gravitational pull that not even light can escape from it.

What is a black hole?

400

This is the word for atoms of the same element with different masses.

What are isotopes?

400

This organelle is known as the "powerhouse" of the cell and produces ATP energy.

What is the mitochondria?

400

This is the term for the bending of light rays as they pass from one medium to another.

What is refraction?

400

This is the kind of rock that is formed by pressing together smaller rocks.

What are sedimentary rocks?

400

This is the name of the giant cloud of gas and dust from which stars and planets are formed.

What is a nebula?

500

This is the term for a substance that speeds up a chemical reaction.

What is a catalyst?

500

This is the name for different forms of a gene that affect the same thing (for example, genes for different colors of eyes).

What are alleles?

500

This is the process of a solid turning directly into a gas without becoming a liquid first.

What is sublimation?

500

What is the name for the supercontinent that existed millions of years ago before breaking apart into the continents we know today?

What is Pangaea?

500

What is the name of the most massive volcano in our solar system, located on Mars?

What is Olympus Mons?

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