Science Physics Key Stage 3 Light and Space
- Slides: 8
Science - Physics - Key Stage 3 Light and Space Lesson 14 - Universe Miss Hindle 1
Quick Recap. . . 1. What is light? A w……………. 2. What sort of wave is light? T………………. . 3. How fast can light travel? 4. How long do you think it takes for light from the Sun to reach Earth?
Why do we use light years? ! 1. Sort the following stars by distance, with nearest first: 3 Star Light Years Away Ross 248 10. 32 Epsilon Indi A 11. 82 GJ 1002 15. 31 Wolf 424 A 14. 31 YZ Ceti 12. 13 Order
Why do we use light years? ! 2. Sort the following stars by distance, with nearest first: Star Metres Away Proxima Centauri 40114000000 Ross 128 103111000000 Sirius A 811754000000 Gliese 832 152330000000 Lacaille 8760 121763000000 4 Order
Why do we use light years? ! 3. Which set was easier to sort? 4. Why do you think scientists prefer to work in light years than metres when describing distances in the universe? 5
Written task: Describe what a light year is and why we need to use light years as a measurement 6
Written task: Describe where the Earth is in the universe. Use the following keywords: planet, star, solar system, universe, galaxies, milky way. E. g. The Earth is a planet in our solar system 7
“Stars are like a car engine” Explain why this statement is wrong. ● Stars are like an engine because… ● But stars are different because they. . . 8