Lesson 8 of 9
Track quiz
Show on a big screenSix ideas about the Earth's treasures. Use the table if you get stuck.
| Idea | The rule |
|---|---|
| Where things start | Almost everything starts as a plant, an animal or the ground. |
| Shared by everyone | What one user takes changes what is left for the others. |
| Soil | Soil forms slowly. Bare ground loses more soil in rain. |
| Forests | Clearing a patch stops two jobs: animal homes, and roots holding soil. |
| Renewable or not | A renewable resource refills in time. A non-renewable one does not refill in our lifetime. |
| Using less | Reduce: use less. Reuse: use again. Recycle: break down and remake. |
Wool is used for a shawl. Where does wool start?
A street tank holds 100 L. One home takes 50 L. Nobody refills the tank. What happens to the rest of the street?
One storm hits two fields. One is bare. One has plants. Which loses more soil?
A patch of forest is cleared for wood. What else stops in that patch?
Which of these is a non-renewable resource?
You wash a glass bottle and fill it again. Which word is this?
NCERT Chapter 11, Nature's Treasures, asks you to sort renewable from non-renewable. It also asks about saving resources. Now you can.
Next: Beyond Earth. Look up from the ground to the sky.
Reveal every answer to finish this lesson.