Science · KS3 · Space
KS3 Space Science for Years 7–9
Space science connects large-scale motion with models of the Solar System and gravity. At KS3, pupils build on primary knowledge and use scientific models to explain patterns such as orbits and the relationship between Earth, the Moon and the Sun.
What to understand in this topic
- describe the Sun as a star at the centre of our Solar System
- recognise that planets orbit the Sun and the Moon orbits Earth
- connect orbital motion with gravitational attraction
- separate Earth’s rotation from its orbit when explaining day and year
A common point of confusion
Day and year come from different motions. A day is linked to Earth rotating on its axis; a year is linked to Earth completing an orbit around the Sun.
Try a quick example
Question: Which motion produces the cycle of day and night on Earth?
Answer: Earth rotating on its axis.
As Earth rotates, a location moves into and out of the part of Earth illuminated by the Sun.
This is a fixed educational example on the page, not a customer result and not a live tutor response.
What a parent can try at home
Use a lamp as the Sun and a ball as Earth. Rotate the ball to model day and night, then move the ball around the lamp to represent an orbit. Keep the two motions distinct.
How NexEdu practises this
NexEdu can test space-science concepts and model-based explanations. It cannot replace practical modelling, observation or teacher-led discussion of the evidence behind astronomical models.
NexEdu provides guided questions throughout the child’s available daily tutoring time. A hint can follow an incorrect answer, and two consecutive incorrect answers trigger a brief reteach before practice continues. Same-day topic progress can resume where the child left off.
About the information on this page
The educational summary is written to help parents understand the topic and its place in the National Curriculum in England. Product statements describe the current NexEdu implementation; they are not promises of a particular grade, score or rate of progress.