Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 381 · 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 rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) stare at the Sun (d) look at it through glass
2. 2.🔮 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 small rainbow (d) a magnet
3. 3.🌈 How many colours do we name in a rainbow (VIBGYOR)?
4. 4.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it turns all red (d) it floats away
5. 5.🧺 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
6. 6.⚖️ 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 change it (c) we keep it the same
7. 7.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) red (c) orange (d) yellow
8. 8.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a sheet of white paper (c) a magnet (d) a balloon
9. 9.True or false: a mirror is needed for the water rainbow. (a) False (b) True
10. 10.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a magnet (d) a clear glass of water
11. 11.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
12. 12.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
13. 13.⚖️ 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) 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.☀️ What is white sunlight really made of? (a) tiny bits of dust (b) many colours mixed (c) only yellow light (d) tiny drops of water
16. 16.🛟 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
17. 17.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
18. 18.🌈 In VIBGYOR, what number colour is yellow?
19. 19.⚖️ 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) False (b) True
20. 20.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
21. 21.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) the glass is painted (d) water splits the light
22. 22.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a clear glass of water (c) a balloon (d) a mirror
23. 23.🌈 In VIBGYOR, what number colour is indigo?
24. 24.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) bright sunlight (d) yeast
25. 25.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
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) brightness of rainbow (b) the amount of water (c) the same white paper (d) the time of day
27. 27.⚖️ 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
28. 28.⚖️ 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 amount of water (b) brightness of rainbow (c) the same glass (d) the same white paper
29. 29.⚖️ 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
30. 30.🌈 In VIBGYOR, what number colour is violet?
31. 31.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
32. 32.🧺 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) yeast (d) a sheet of white paper
33. 33.True or false: a magnet is needed for the water rainbow. (a) False (b) True
34. 34.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
35. 35.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a sheet of white paper (d) turmeric powder
36. 36.🌈 In VIBGYOR, what number colour is blue?
37. 37.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) yeast (d) a sunny window
39. 39.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
40. 40.🌈 In VIBGYOR, what number colour is orange?

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