Metric System
Solids, Liquids, Gases
Periodic Table
Protons, Electrons, Neutrons
Chemical Reactions
100

This is the basic unit of length in the metric system.

What is a meter?

100

This state of matter has a definite shape and volume.

What is a solid?

100

This is the lightest and first element on the periodic table.

What is Hydrogen?

100

These subatomic particles have a positive charge.

What are protons?

100

In a chemical reaction, these are the starting substances.

What are reactants?


200

There are 1,000 of these in a meter.

What are millimeters?

200

This state of matter takes the shape of its container but has a definite volume.

What is a liquid?

200

This number represents how many protons an atom of an element has.

What is the Atomic Number?

200

These subatomic particles have no charge.

What are neutrons?

200

This is what you call the substances formed in a chemical reaction.

What are Products?

300

This metric prefix means one one-thousandth.

What is milli?


300

This state of matter has neither a definite shape nor a definite volume.

What is a gas?

300

These columns on the periodic table are called this.

What are groups (or families)?


300

These tiny particles orbit the nucleus and have a negative charge.

What are electrons?

300

This law states that matter is neither created nor destroyed in a chemical reaction.

What is the Law of Conservation of Mass?

400

A kilogram is equal to this many grams.

What is 1,000 grams?

400

The process of a solid changing directly into a gas is called this.

What is Sublimation?

400

These elements are found along the "stair-step" line and have properties of both metals and nonmetals.

What are metalloids?

400

The number of protons in an atom equals this.

What are protons?

400

This number is placed in front of chemical formulas to balance a chemical equation.

What is a coefficient?

500

This unit measures the volume of a liquid in the metric system.

What is a liter?

500

This change of state happens when a gas turns into a liquid.

What is condensation?

500

The element with the symbol "Na" is this.

What is Sodium?

500

This is the total number of protons and neutrons in an atom’s nucleus.

What is atomic mass?

500

This type of chemical equation has the same number of each type of atom on both sides of the equation.

What is a balanced equation?