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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 264 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.🌈 In VIBGYOR, what number colour is yellow?
  2. 2.⚖️ 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 change it (b) we keep it the same (c) we measure it
  3. 3.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) violet (c) blue (d) red
  4. 4.⚖️ 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 keep it the same (c) we change it
  5. 5.⚖️ 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 measure it (c) we change it
  6. 6.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so it turns blue (c) so it gets hot (d) so the Sun moves
  7. 7.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a magnet (c) a battery cell (d) a sunny window
  8. 8.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  9. 9.🌈 In VIBGYOR, what number colour is blue?
  10. 10.🌈 In VIBGYOR, what number colour is red?
  11. 11.🌈 In VIBGYOR, what number colour is violet?
  12. 12.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) a magnet
  13. 13.🧺 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) a magnet (d) a sheet of white paper
  14. 14.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
  15. 15.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) turmeric powder (c) a magnet (d) a battery cell
  16. 16.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) yeast (c) bright sunlight (d) a clear glass of water
  17. 17.🌈 In VIBGYOR, what number colour is green?
  18. 18.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) under the ground (d) behind you
  19. 19.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
  20. 20.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
  21. 21.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) violet (c) red (d) yellow
  22. 22.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
  23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sunny window
  24. 24.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) water splits the light (d) the glass is painted
  25. 25.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) the rainbow fades (c) it floats away (d) it turns brighter
  26. 26.True or false: yeast is needed for the water rainbow. (a) True (b) False
  27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
  28. 28.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) reflection (d) refraction
  29. 29.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
  30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a mirror (d) a sunny window
  31. 31.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
  32. 32.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
  33. 33.⚖️ 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 white paper (b) the same glass (c) the time of day (d) the amount of water
  34. 34.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
  35. 35.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) a battery cell
  36. 36.🌈 In VIBGYOR, what number colour is indigo?
  37. 37.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
  38. 38.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
  39. 39.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) balloons (d) clouds
  40. 40.True or false: a balloon is not needed for the water rainbow. (a) True (b) False

Answer key

  1. 5
  2. we measure it
  3. red
  4. we change it
  5. we keep it the same
  6. so it does not fall
  7. a sunny window
  8. 7
  9. 3
  10. 7
  11. 1
  12. a magnet
  13. a magnet
  14. not needed
  15. a clear glass of water
  16. yeast
  17. 4
  18. behind you
  19. False
  20. True
  21. violet
  22. True
  23. yeast
  24. water splits the light
  25. the rainbow fades
  26. False
  27. turmeric powder
  28. refraction
  29. True
  30. a mirror
  31. True
  32. False
  33. the amount of water
  34. True
  35. a battery cell
  36. 2
  37. True
  38. not needed
  39. prisms
  40. True

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