Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 866 · 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.🌈 How many colours do we name in a rainbow (VIBGYOR)?
2. 2.🌈 In VIBGYOR, what number colour is indigo?
3. 3.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
4. 4.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) snow falling (c) a magnet (d) a small rainbow
5. 5.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a balloon (c) a mirror (d) turmeric powder
6. 6.⚖️ 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 white paper (c) the amount of water
7. 7.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) orange (c) red (d) violet
8. 8.⚖️ 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 change it (c) we keep it the same
9. 9.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
10. 10.⚖️ 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 amount of water (b) brightness of rainbow (c) the same glass (d) the same white paper
11. 11.⚖️ 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
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
14. 14.True or false: yeast is not needed for the water rainbow. (a) True (b) False
15. 15.🔮 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
16. 16.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a sheet of white paper (d) a battery cell
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) turmeric powder
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sunny window (c) a sheet of white paper (d) bright sunlight
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a battery cell (d) a sheet of white paper
21. 21.🌈 In VIBGYOR, what number colour is blue?
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) a clear glass of water (d) bright sunlight
23. 23.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
24. 24.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
25. 25.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it through glass (c) stare at the Sun (d) look at it in a mirror
26. 26.☀️ What is white sunlight really made of? (a) tiny bits of dust (b) only yellow light (c) many colours mixed (d) tiny drops of water
27. 27.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a mirror (c) a sunny window (d) bright sunlight
29. 29.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
30. 30.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
31. 31.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
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 what we measure. (a) False (b) True
33. 33.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the same window (c) brightness of rainbow
34. 34.🌈 In VIBGYOR, what number colour is red?
35. 35.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
36. 36.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
37. 37.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
38. 38.⚖️ 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 keep it the same (b) we change it (c) we measure it
39. 39.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) turmeric powder (c) a sunny window (d) a battery cell
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the same glass (c) brightness of rainbow

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