Natural Science · 3.º de Primaria · Ficha de repaso
Unit 4: We preserve ecosystems
What an ecosystem is, food chains, other relationships between living things and the main ecosystems.
3.º de Primaria · Natural Science · Unit 4: We preserve ecosystems · Ficha de repaso
Ecosystems
An ecosystem is a place with living things (animals, plants) and non-living things (water, soil, light).
Food chains
They show who eats whom.
- grass → rabbit → fox
Main ecosystems
- forest
- river
- sea
- desert
- mountain