SS4. U1.

1. 1. The star at the centre of the Solar System is...

• the Earth.

• the Sun.

• the Moon.

2. 2. Celestial bodies that travel around a planet are...

3. 3. The movement of the Earth that causes day and night is...

4. 4. The top half of the Earth is tilted towards the Sun is...

• summer.

• autumn.

• winter.

5. 5. The hydrosphere is...

• a mixture of gases.

• all the Earth's water.

• the interior and surface of the Earth.

6. 6. The thinnest, outer part of the geosphere is...

8. 7. A ... is a natural hazard of the geosphere.

• flood

• hurricane

• volcanic eruption

8. 8. The imaginary lines that divides the Earth into two halves is called...

9. 9. A map is...

• an electronic device that shows the exact positions on the Earth.

• a sphere that shows the Earth on a much smaller scale.

• a flat representation of the Earth or a part of the Earth.

10. 10. The element of a map that shows where the north, south and east are is...