Physics
Chemistry
Scientists
Biology
Astronomy
100
The first principle of motion: “An object in motion will stay in motion, unless acted upon by an outside force.”

What is inertia?

100

The diagram that lists all discovered elements.

What is the periodic table?

100

The scientist credited with developing the theory of gravity, famously inspired by a falling apple.

Who is Isaac Newton?

100

This class of hairy animals includes dogs, monkeys, bats, horses, and many more.

What are mammals?
100

The galaxy that our solar system is in.

What is the Milky Way?

200

The force which creates heat when objects rub together.

What is friction?

200

The lightest element, consisting of a single proton and electron.

What is helium?

200

The scientist who deveoped the theory of relativity in the 1900s.

Who is Albert Einstein?

200

The tiny units that contain smaller organelles and form the basis of every living creature.

What are cells?

200
Large, non-solid planets like Jupiter, Saturn, Uranus, and Neptune.

What are gas giants?

300
The flow of electrons through a conductive material.

What is electricity?

300

The element that makes life possible or can form diamonds and coal.

What is Carbon?

300

The famous astronomer who confirmed that the Earth revolves around the sun, among many other things.

Who is Galileo Galilei?

300

The process by which plants produce energy from sunlight.

What is photosynthesis?

300

The incredibly dense singularities at the center of many galaxies.

What are black holes?

400

The type of energy that a toy car has when it sits at the top of a hill.

What is potential energy?

400

These chemicals have a pH below 7, and are known for dissolving other substances.

What are acids?

400

The scientist credited with developing the theory of evolution.

Who is Charles Darwin?

400
A diagram which shows the flow of energy from the sun, to producers (like plants), to consumers (like animals).

What is the food chain?

400

The type of planet that Pluto was reclassified as in 2008.

What is a dwarf planet?

500

The principle that causes lighter objects to float in a fluid.

What is buoyancy?

500
A molecule which has a charge.

What is an ion?

500
The scientist who discovered radioactivity and its effects, sacrificing her own life in the process.

Who is Marie Curie?

500

A diagram that shows all the possibilities of a particular gene if two organisms were to reproduce.

What is a Punnett square?

500

The process that occurs inside a star, where helium atoms merge into hydrogen atoms to release light.

What is nuclear fusion?

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