1.1. Complete the description of the Earth by filling in the blanks using words from the list below.

You may use words more than once, or not at all.

• The Earth is a rocky planet following an  ______ orbit around the Sun.

• It rotates on its ______, which is tilted at an angle of approximately 23.4° from the ______.

• The Earth takes approximately 24 ______ to complete one full rotation, causing the ______ daily motion of the Sun rising and setting.

• Rotation of the Earth on its axis is therefore responsible for the ______ cycle of day and night.

1.2. Fig. 1 shows the Earth orbiting the Sun.

Explain why it is summer in the northern hemisphere at position A.

1.3. Complete the description of the Moon by filling in the blanks using words from the list below.

You may use words more than once, or not at all.

• The Moon is a natural ______ of the Earth which travels in a roughly _____ orbit.

• The ______ of the Moon's orbit is approximately 28 ______.

• The Moon revolves around its own axis with the same ______ as its orbit so always has the same side facing the Earth.

• The Moon shines with ______ light from the ______, it does not produce its own light

1.4. Fig. 2 shows the phases of the Moon.

Using the labels A - H, identify the following phases.

(i) Full moon.

[1]

(ii) New moon.

[1]