Renewable & Non-Renewable Resources

What this lesson covers

Renewable & Non-Renewable Resources is a 10-part Class 8 Science lesson. Each part makes one point and then hands over to the next, so it can be read in a sitting or picked up again at the part you stopped on. It defines the idea in plain words before using it, works through an example step by step, breaks the topic into its parts and compares them, shows where it is used outside the textbook, names the mistakes that cost marks in an exam, ends with a recap of what to remember.

How it begins

A renewable resource is replaced as fast as we use it, or faster. Sunlight, wind, water and biomass all qualify. A non-renewable resource took millions of years to form and is being used far faster than it is replaced: coal, oil, gas and nuclear fuel.

The 10 parts

1. The two categories
2. Fossil fuels
3. The greenhouse effect
4. The renewables
5. The trade-offs
6. Nuclear power
7. Conservation and recycling
8. Where marks go
9. What to remember
10. Watch one worked through