Part 1: Patterns and Vocabulary

1. Which statement best describes the Sun?

A planet that reflects light

A star that produces its own light

A moon orbiting Earth

2. Why can we see the Moon?

It produces its own light.

It reflects light from the Sun.

It is made of glowing gas.

3. Earth’s rotation causes:

day and night

the Moon’s phases

the length of a year

4. Match each word to its meaning.

A. rotation

B. revolution

C. orbit

D. phase

1. The path followed by an object in space

2. The changing shape of the Moon that we see

3. A complete turn around an axis

4. Movement around another object

Answers: A–____ B–____ C–____ D–____

Part 2: Explain and Apply

5. Draw and label a simple model showing the Sun, Earth and Moon. Include Earth’s orbit around the Sun and the Moon’s orbit around Earth. Add arrows to show the direction of movement.

6. Explain how Earth’s rotation produces day and night.

7. Explain how Earth’s orbit around the Sun is connected to the length of a year.

8. The Moon appears to change shape during a month. Explain why we see different Moon phases.

9. Misconception check: True or false? “The Moon’s phases happen because Earth’s shadow covers different parts of the Moon each night.” Explain your answer.

True

False

10. Higher-order thinking: If Earth suddenly stopped rotating but continued orbiting the Sun, what pattern of light and darkness would change? Explain your prediction.

Teacher Answer Key

1. A star that produces its own light.

2. It reflects light from the Sun.

3. Day and night.

4. A–3, B–4, C–1, D–2.

5. Diagram should show the Sun at the centre, Earth orbiting the Sun, and the Moon orbiting Earth. Arrows should show movement.

6. Earth rotates on its axis. The side facing the Sun has day; the side facing away has night.

7. Earth takes about 365 days to complete one orbit around the Sun. This cycle is one year.

8. The Moon does not make its own light. As it orbits Earth, we see different amounts of its sunlit half.

9. False. Moon phases are mainly caused by the changing positions of the Sun, Earth and Moon, not Earth’s shadow. Earth’s shadow causes a lunar eclipse.

10. There would no longer be a normal repeating day-and-night cycle caused by rotation. Earth would still have a year because it continued orbiting the Sun.