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States of Matter

Use these cards to help you learn about the states of matter and recall vocab.

TermDefinition
Solid A state of matter where the shape is fixed. The molecules are fixed and have a regular shape.
Liquid A state of matter where the shape can change. The molecules are loosely packed and move freely.
Gas A state of matter in which the shape and molecules are not fixed, the molecules move freely.
Molecules What matter is made up of. In each state of matter, the molecules are different.
Reversable Changes A change in matter that can be reversed. For example, melting a popsicle stick or melting chocolate.
Irreversible Changes A change of matter that can't be undone. Examples include: nails rusting, eggs cooking, or making a cake.
Matter Anything that has mass and takes up space.
Volume The amount of space that matter takes up.
Mass The amount of in an object.
Physical changes Changes in matter that only change the way an object looks. Examples include: crunching up a piece of paper.
Chemical changes A chemical reaction makes something new. For example, mixing baking soda and vinegar together creates carbon dixoide.
Created by: elainez
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