All lessons
Lesson preview · in Chinese · opens in your child's lessons after sign-up
Grade 3 · Science
The secret of air
You can't see air, but it takes up space and has mass
What this lesson teaches
- Push a cup into water and check whether the paper inside gets wet
- Poke a small hole in the bottom of the cup and try again
- Explain why the paper stays dry: air takes up space
- Use a balloon balance to find that air has mass
Want your child to take this lesson?
After sign-up this lesson goes straight into your child's lessons: finishing it earns stars, and progress sits next to their daily tasks and habits.
The lesson is in Chinese. In Lesson Manager this lesson will be listed first: pick a child and tap Add to lessons.