Energy
Atoms
Substances
Forces and fields
Nature
100

A spectrum of electromagnetic energy

What is the electromagnetic spectrum?


100

The number of protons in an atom. This can also be the number of electrons, but that number can change.

What is the atomic number?

100

Two or more things combine without a chemical reaction.

What is a mixture?

100
A force.

What is a push or a pull?

100
Everything in the domain of science; guide how nature works.

What are the laws of nature?

200

Kinetic Energy

What is energy of motion?

200

One or two letters.

What is atomic/element symbol?

200

A group of atoms bonded together.

What is a molecule?


200

The fundamental forces.

What are gravitational, electromagnetic, strong nuclear, and weak nuclear?

200

Some kind of underlying principle, an intelligent creator, or none whatsoever.

What are the reasons for the laws of nature?

300
Gravity helps this process which is how energy is produced by the Sun

What is fusion?

300

Atomic mass

What is the average of all an atom's isotopes?

300

This has an array.

What is a crystal?

300
Atoms are surrounded by the same charges and like charges repel each other.

Why does nothing ever really touch?

300

The transparency of this allows the Earth to trap just enough heat for life and for us to see out into space.

What is the atmosphere?
400

This type of potential energy is found in the bonds of molecules.

What is chemical potential energy?

400

This represents a compound; it includes the symbols of all elements present and how many of each are there.

What is a chemical formula?

400

A homogenous mixture

What is a solution?

400
A geometric description of the strength, range, and direction of a force.

What is a field?

400

This, which is created by Earth's iron core, provides us with a magnetosphere that protects the Earth from solar wind.

What is the magnetic field?

500
The amount of matter in an object. It does not depend on gravity.

What is mass?

500

When these are present in a chemical formula, we only multiply what is inside.

What are parentheses?

500

These all have the same number of protons in their nucleus.

What are elements?

500

Every object with mass exerts a gravitational force on everything else with mass.

What is the Law of Universal Gravitation?

500

If these were slightly different the physics and chemistry that make life possible would change completely.

What are constants?

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