Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 171 · 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 of these is not needed for the water rainbow? (a) a mirror (b) a clear glass of water (c) a sunny window (d) bright sunlight
2. 2.⚖️ 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 measure it (c) we change it
3. 3.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it does not fall (c) so the Sun moves (d) so it turns blue
4. 4.🔮 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
5. 5.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) yeast (d) bright sunlight
6. 6.🌈 In VIBGYOR, what number colour is red?
7. 7.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
8. 8.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) reflection (c) evaporation (d) refraction
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) a clear glass of water (d) a magnet
10. 10.⚖️ 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
11. 11.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🌈 In VIBGYOR, what number colour is green?
14. 14.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
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 keep it the same (b) we change it (c) we measure it
16. 16.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) the water is coloured (c) water splits the light (d) the paper makes colours
17. 17.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
18. 18.☀️ What is white sunlight really made of? (a) tiny bits of dust (b) only yellow light (c) tiny drops of water (d) many colours mixed
19. 19.🌈 In VIBGYOR, what number colour is indigo?
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 clear glass of water (d) a battery cell
21. 21.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
23. 23.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
24. 24.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
25. 25.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a mirror (c) bright sunlight (d) a sheet of white paper
27. 27.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
28. 28.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) prisms (c) balloons (d) clouds
29. 29.🌈 In VIBGYOR, what number colour is violet?
30. 30.🌈 In VIBGYOR, what number colour is yellow?
31. 31.True or false: a balloon is needed for the water rainbow. (a) False (b) True
32. 32.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a battery cell (c) a clear glass of water (d) a sheet of white paper
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 same glass (b) brightness of rainbow (c) the amount of water
34. 34.🌈 How many colours do we name in a rainbow (VIBGYOR)?
35. 35.🛟 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
36. 36.⚖️ 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) brightness of rainbow (c) the time of day
37. 37.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a sunny window (c) a magnet (d) yeast
38. 38.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed

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