Unit 6

1. A PLANET CALLED
THE EARTH

3. WATER ON EARTH
salt water – fresh water
FRESH WATER:
Rivers, lakes and underground water.
SALT WATER:
Seas and oceans.

4. CONTINENTS AND OCEANS

5. OBJECTS IN THE SKY: stars, planets and
satellites.

6. THE PLANETS

7. DAY AND NIGHT
When the sun comes
up, it is sunrise
When the sun is highest
in the sky, it is midday When the sun goes
down, it is sunset

8. THE SEASONS

9. WHY ARE THERE DIFFERENT SEASONS?

10. THE END