Has mass

Takes up space

Has a definite shape

Has a definite volume

A bond is the smallest whole unit of matter

An atom is the smallest whole unit of matter

An electron is the smallest whole unit of matter

A molecule is the smallest whole unit of matter

A nucleus of an atom is made of electrons and protons

A nucleus of an atom is made of protons, neutrons, and electrons

A nucleus of an atom is made of protons and neutrons

A nucleus of an atom is made of electrons and neutrons

It is measured in meters cubed

It is measured in meters

It is measured in liters

It is measured in grams

Mass and height

Mass and length

Mass and volume

Volume and height

The center of an atom is called a nucleus, which is made up of smaller parts.

Liquids have molecules that are close together but are able to move around to take on the shape of a container.

All matter (solids, liquids, and gases) are made up of atoms, which are the smallest unit of matter.

Solid, liquids, and gas are made up of large particles called molecules, which are bonded together.

When lava cools, it can form a hard, shiny, black rock called obsidian. (page 1, paragraph 3)

Red-orange lava, or melted rock, shoots out of the top of the volcano. (page 1, paragraph 1)

Volcanoes also add gases to the air. (page 2, paragraph 3)

Lava is a type of matter. (page 1, paragraph 2)

Hiding in a dark place

Exploding in a loud, colorful manner

Flooding onto low ground

Making a low, continuous sound