Grade 2 Vocab Unit 1

When matter changes from one form to another by changing temperature.

• State Change 
• Mass
• Solid
• Liquid

The amount of matter in an object, or how heavy an object is.

• Mass
• Matter
• Solid
• Irreversible change

These have a mass and take up a set amount of space, but can be poured to take the shape of their container.

• Liquid
• Solid
• Gas
• Mass

A change that cannot be undone.

• Irreversible Change
• Reversible Change
• Property
• Gas

All matter can be put into one of three categories: solid, liquid, or gas.

• States of Matter
• Gas
• Mass
• Reversible Change

A change that can be undone.

• Reversible Change
• Irreversible Change
• Solid
• Mass

These have a specific shape, mass, and take up a set amount of space.

• Solid
• Gas
• Liquid
• States of Matter

Anything you use to make things.

• Material
• Mass
• Property
• State Change

These have mass, can spread to fill any space, and do not have a shape.

• Gas
• Solid
• Liquid
• Material

The way an object looks, feels, or acts.

• Properties
• Mass
• States of Matter
• Reversible Change