Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 618 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) turmeric powder (d) a sheet of white paper
2. 2.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
3. 3.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
4. 4.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🌈 In VIBGYOR, what number colour is yellow?
6. 6.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a magnet (d) bright sunlight
7. 7.🌈 In VIBGYOR, what number colour is indigo?
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🌈 In VIBGYOR, what number colour is violet?
10. 10.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
11. 11.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
12. 12.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) balloons (c) clouds (d) magnets
13. 13.🌈 In VIBGYOR, what number colour is green?
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same window (b) the amount of water (c) the same glass (d) brightness of rainbow
15. 15.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) water splits the light (c) the glass is painted (d) the water is coloured
16. 16.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) bright sunlight (c) a sheet of white paper (d) a mirror
17. 17.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a mirror (c) bright sunlight (d) turmeric powder
18. 18.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
19. 19.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
20. 20.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) False (b) True
21. 21.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) a sheet of white paper (d) turmeric powder
22. 22.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) look at it through glass (d) stare at the Sun
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a small rainbow (c) snow falling (d) a magnet
25. 25.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a balloon (c) a sheet of white paper (d) a clear glass of water
26. 26.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
27. 27.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
28. 28.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) True (b) False
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) bright sunlight (c) a clear glass of water (d) a sunny window
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) True (b) False
32. 32.🌈 In VIBGYOR, what number colour is blue?
33. 33.🌈 How many colours do we name in a rainbow (VIBGYOR)?
34. 34.True or false: yeast is not needed for the water rainbow. (a) True (b) False
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
36. 36.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) the rainbow fades (d) it turns all red
37. 37.🌈 In VIBGYOR, what number colour is orange?
38. 38.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) bright sunlight (d) a balloon
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it does not fall (c) so the Sun moves (d) so it turns blue

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids