Science / Grades 1-2
Solids, liquids, and gases
Learning goal: Look at a wooden block, water, and air to learn how they are different.
Before you start: Recognize the pictured block, water and air. Talk about the pictures; no pouring is needed.
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States of matter practice
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1. Look at these three
Audio: 0:00
Here is a wooden block, a cup of water, and a balloon filled with air. Let us see how they are different.
2. A solid keeps its shape
Audio: 0:09
The wooden block is a solid. Put it on a plate or in a box. It keeps its shape.
3. Water can change shape
Audio: 0:18
Water is a liquid. It flows. Pour it from a cup into a bowl. The water changes shape to fit the bowl.
4. Air takes up space
Audio: 0:29
Air is a gas. We cannot see the air, but it takes up space. Air fills this balloon.
5. Your turn
Audio: 0:38
Water moves from a cup into a bowl. Pause here. Is the water a solid, a liquid, or a gas?
6. Still a liquid
Audio: 0:48
The water is still a liquid. It flows and changes shape to fit the bowl. A wooden block keeps its shape.
Show your understanding
You can point, explain aloud, draw or write.
- Compare how a solid and a liquid keep or change shape.
- Explain that air is there and takes up space even when you cannot see it.
Try it yourself
Look at a wooden block and some water in a cup. Which keeps its own shape?
With an adult, pour a little water into a bowl. What changes? Keep the water away from your device.
Next: your worksheet
States of matter practicehttps://s3u.com/sp201
Lesson: https://s3u.com/listen/states-of-matter