Year 7 · Science · Space · Lesson 2
Day, night, years and seasons
Day and night from Earth's spin, months and years from orbits, leap years, and how Earth's tilted axis causes the seasons.

16-minute video lesson
Teaching, worked examples and 20 practice questions solved step by step.
Watch free for a monthWhat your child will learn
- Explain day and night
- Explain years and leap years
- Explain the seasons
- Correct the distance misconception
The method
- Tilt.
- Towards / away.
- High Sun, long days.
- Not distance.
Key words: axis, orbit, tilt, season, hemisphere, leap year.
Worked examples
The first three practice questions from the lesson, with every step.
Question 1
How long does Earth take to spin once?
- Step 1: Day
Answer: 24 hours
Question 2
What causes day and night?
- Step 1: Spin
Answer: Earth spinning on its axis
Question 3
How long does Earth take to orbit the Sun?
- Step 1: Year
Answer: about 365¼ days