Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 137 · 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.📘 What do we call light bending as it passes from air into water? (a) reflection (b) evaporation (c) refraction (d) magnetism
2. 2.⚖️ 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
3. 3.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
4. 4.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
5. 5.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a magnet (c) bright sunlight (d) a sunny window
6. 6.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) it turns all red (d) the rainbow fades
7. 7.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a battery cell
8. 8.🌈 How many colours do we name in a rainbow (VIBGYOR)?
9. 9.True or false: yeast is needed for the water rainbow. (a) False (b) True
10. 10.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
11. 11.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) snow falling (d) a small rainbow
12. 12.⚖️ 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
13. 13.🌈 In VIBGYOR, what number colour is yellow?
14. 14.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so the Sun moves (d) so it does not fall
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a balloon (c) a clear glass of water (d) a sunny window
17. 17.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) the water is coloured (c) the paper makes colours (d) water splits the light
18. 18.🌈 In VIBGYOR, what number colour is blue?
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.True or false: a mirror is needed for the water rainbow. (a) True (b) False
21. 21.⚖️ 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 measure it (b) we change it (c) we keep it the same
22. 22.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
23. 23.🌈 In VIBGYOR, what number colour is green?
24. 24.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
25. 25.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) behind you (d) in front of you
26. 26.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) a sunny window (d) yeast
27. 27.🌈 In VIBGYOR, what number colour is indigo?
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) True (b) False
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 the one thing we change. (a) False (b) True
30. 30.⚖️ 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) False (b) True
31. 31.☀️ What is white sunlight really made of? (a) many colours mixed (b) only yellow light (c) tiny bits of dust (d) tiny drops of water
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is kept the same. (a) True (b) False
33. 33.⚖️ 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 change it (b) we measure it (c) we keep it the same
34. 34.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) a clear glass of water (c) bright sunlight (d) a sunny window
35. 35.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) turmeric powder (d) a clear glass of water
36. 36.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
37. 37.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a clear glass of water (d) a sheet of white paper
38. 38.⚖️ 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 white paper (b) the amount of water (c) brightness of rainbow (d) the same glass
39. 39.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
40. 40.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a balloon (d) a mirror

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