Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 142 · 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.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
2. 2.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) look at it through glass (d) stare at the Sun
3. 3.🧺 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
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) a mirror (d) a sunny window
5. 5.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) a sheet of white paper (d) a magnet
6. 6.🌈 How many colours do we name in a rainbow (VIBGYOR)?
7. 7.True or false: yeast is not needed for the water rainbow. (a) False (b) True
8. 8.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) snow falling (d) a small rainbow
9. 9.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
10. 10.⚖️ 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 measure it (b) we change it (c) we keep it the same
11. 11.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) True (b) False
12. 12.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
13. 13.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) True (b) False
15. 15.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) orange (c) yellow (d) violet
16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.📘 What do we call light bending as it passes from air into water? (a) refraction (b) evaporation (c) reflection (d) magnetism
18. 18.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) bright sunlight (c) a battery cell (d) a mirror
19. 19.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
20. 20.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
21. 21.🔮 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
22. 22.⚖️ 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) brightness of rainbow (c) the amount of water (d) the same glass
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same white paper (b) the same glass (c) the amount of water (d) the same window
24. 24.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) turmeric powder (c) yeast (d) a clear glass of water
25. 25.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny drops of water (c) tiny bits of dust (d) many colours mixed
26. 26.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
27. 27.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sunny window (c) a mirror (d) yeast
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) True (b) False
29. 29.🌈 In VIBGYOR, what number colour is blue?
30. 30.🌈 In VIBGYOR, what number colour is indigo?
31. 31.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) clouds (c) magnets (d) prisms
32. 32.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it turns blue (d) so it gets hot
33. 33.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
34. 34.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
35. 35.🌈 In VIBGYOR, what number colour is violet?
36. 36.⚖️ 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) True (b) False
37. 37.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
38. 38.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
39. 39.⚖️ 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) False (b) True
40. 40.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False

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