Science

Course 1: Our solar system

1. How old is sunlight?Start · 4 min
2. The side we never seeLocked
3. A day longer than a yearLocked
4. The highest mountain in spaceLocked
5. The disappearing ringsLocked
6. Course quizLocked, 8 questions · after 5 lessons

1. The glue that didn't holdStart · 4 min
2. Chocolate in the pocketLocked
3. Glass that doesn't shatterLocked
4. Burrs in the dog's furLocked
5. Mould saves livesLocked
6. Course quizLocked, 8 questions · after 5 lessons

1. White turns into coloursStart · 4 min
2. Where does the rainbow end?Locked
3. Why is the sky blue?Locked
4. Fire alarm in the evening skyLocked
5. Invisible coloursLocked
6. Course quizLocked, 8 questions · after 5 lessons