1. Lesson 2 What are Some Types
of Ecosystems

2. Vocabulary
1. desert: an ecosystem that is very dry.
2. Grassland: an area of land that is generally
hot in the summer and cold in the winter.
3. Forest: an ecosystem in which many trees
grow.

3. Desert Ecosystem
Deserts are very dry ecosystems. Plants and
animals in the desert can survive with very little
water.
Temperatures in some deserts rise very high by
day. Most animals find shady places to sleep and
come out only after sunset.

4. Animals get all the water they need from plants
they eat.

5. Grassland Ecosystem
They get more rain and snow than deserts do but less
than most other ecosystems.
Food crops grow well in grassland ecosystems. The
main plant in a grassland ecosystem is the grass.

6. A grassland ecosystem includes both large
animals and small animals.

7. Saltwater ecosystem
Oceans cover about three- fourths of Earth´s
surface.
Organisms that live in the ocean need saltwater.

8. Freshwater ecosystem
Rivers, ponds, streams have fresh water.
Freshwater does not have much salt.

9. Forest ecosystem
There are different kinds of forest. A tropical rain forest
grows where it is hot and wet all year.
Most of the trees in a decidious forest lose their leaves in
the fall. These forest grow where
it is warm in summer and cold in winter.
Evergreen trees grow in a coniferous
forest. These forest have cool summer
and cold winters.