Describe how the atoms are arranged and move in a solid.

Atoms in a solid are packed closely together and vibrate in place.

Explain why a gas does not have a definite shape or volume.

Gases have no definite shape or volume because their atoms are very spread out and move quickly, filling any available space.

Natural example: lightning; artificial example: neon signs

Grade 5 · Science · 45 min

I can describe how matter can change from one state to another.

Miacademy & MiaPrep Learning Channel · 9:30

States of Matter - Solid, Liquid, and Gas Explained

3 key concepts

1
Matter can exist in four different states: solid, liquid, gas, and plasma.
2
A solid has a definite volume and shape because its atoms are packed closely together and only vibrate.
3
A gas has no definite volume or shape because its atoms are very spread out and move quickly.

8 questions · Multiple choice & Short answer

Quick comprehension check

“Describe what happens to the atoms when matter changes from a liquid to a gas.”

Get all 3 ready-to-use resources:

Teacher GuideComplete lesson plan

Student DocPrintable student handouts

SlidesReady-to-use presentation