What is air?
Imagine you're playing outside on a sunny day. You don't see it, but you feel it when you run, that's air! It’s all around us, even when we can’t see it. When you blow out birthday candles, that's air moving from your mouth to the flame.
What is wood?
Now think about a tree. Wood comes from trees. If you touch a wooden block or a chair, that’s wood, it's hard, solid, and you can feel it under your fingers. It’s like the strong arms of a tree, frozen in time.
So, air is what we breathe and what moves around us, while wood is what we touch and what makes things sturdy. Both are parts of our world that help make life fun and safe!
Examples
- A child notices that air can be felt but not held, unlike a wooden block.
- Air fills up balloons easily, while wood is used to make tables.
- Blowing on a candle (air) vs. burning a piece of wood.
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See also
- How Does 0: Introduction to Materials Science Work?
- What is low-density?
- What are materials?
- What are droplets?
- What are brighter spots?