Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 912 · 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.🌈 In VIBGYOR, what number colour is green?
2. 2.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the same window (c) the amount of water
3. 3.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns all red (c) it turns brighter (d) the rainbow fades
4. 4.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a mirror (c) bright sunlight (d) a balloon
5. 5.🌈 In VIBGYOR, what number colour is red?
6. 6.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) True (b) False
7. 7.🌈 In VIBGYOR, what number colour is blue?
8. 8.⚖️ 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 glass (b) the same window (c) the amount of water (d) brightness of rainbow
9. 9.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) blue (c) violet (d) green
10. 10.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
11. 11.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a magnet (c) a sheet of white paper (d) a sunny window
12. 12.⚖️ 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 keep it the same (b) we measure it (c) we change it
13. 13.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) yeast (c) a magnet (d) a balloon
14. 14.🔮 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
15. 15.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
16. 16.🌈 How many colours do we name in a rainbow (VIBGYOR)?
17. 17.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
18. 18.True or false: yeast is needed for the water rainbow. (a) True (b) False
19. 19.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
20. 20.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
21. 21.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so the Sun moves (d) so it does not fall
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) bright sunlight (c) a clear glass of water (d) a sunny window
23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a balloon (c) a sunny window (d) a sheet of white paper
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) yeast (c) a clear glass of water (d) a sunny window
25. 25.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
26. 26.⚖️ 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 glass (b) the time of day (c) brightness of rainbow (d) the amount of water
27. 27.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) False (b) True
28. 28.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) yeast (c) a battery cell (d) a clear glass of water
29. 29.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) violet (c) orange (d) yellow
30. 30.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
31. 31.⚖️ 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 keep it the same (c) we change it
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
34. 34.True or false: a clear glass of water is 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? What do we do with “the same window”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
37. 37.🌈 In VIBGYOR, what number colour is violet?
38. 38.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the paper makes colours (c) the glass is painted (d) the water is coloured
39. 39.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) never look at the Sun (d) look at it through glass
40. 40.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a balloon (d) bright sunlight

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