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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 460 · 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.

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  1. 1.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) red (c) orange (d) yellow
  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) the time of day (b) the amount of water (c) brightness of rainbow
  3. 3.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) look at it through glass (d) stare at the Sun
  4. 4.⚖️ 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) brightness of rainbow (b) the amount of water (c) the same glass (d) the time of day
  5. 5.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) False (b) True
  6. 6.⚖️ 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
  7. 7.⚖️ 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 keep it the same (b) we measure it (c) we change it
  8. 8.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a clear glass of water (d) a mirror
  9. 9.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  10. 10.🔮 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
  11. 11.⚖️ 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) False (b) True
  12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) turmeric powder (c) a sunny window (d) a clear glass of water
  13. 13.🌈 In VIBGYOR, what number colour is violet?
  14. 14.⚖️ 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
  15. 15.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a shadow of ice (c) a small rainbow (d) a magnet
  16. 16.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
  17. 17.⚖️ 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
  18. 18.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) a sunny window (d) yeast
  19. 19.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) yeast (d) a battery cell
  20. 20.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a mirror
  21. 21.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
  22. 22.🧺 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 sheet of white paper (d) a balloon
  23. 23.⚖️ 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 amount of water (c) the same glass
  24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) a battery cell
  25. 25.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
  26. 26.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
  27. 27.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) straight above you (d) behind you
  28. 28.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a sheet of white paper (c) a clear glass of water (d) bright sunlight
  29. 29.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
  30. 30.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) reflection (c) refraction (d) magnetism
  31. 31.🧺 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) bright sunlight (d) a magnet
  32. 32.⚖️ 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 window (b) brightness of rainbow (c) the amount of water
  33. 33.⚖️ 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 glass (d) the same white paper
  34. 34.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
  35. 35.🌈 In VIBGYOR, what number colour is red?
  36. 36.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) turmeric powder (c) a sheet of white paper (d) a magnet
  37. 37.⚖️ 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) True (b) False
  38. 38.True or false: turmeric powder 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 window”? (a) we keep it the same (b) we change it (c) we measure it
  40. 40.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed

Answer key

  1. violet
  2. the time of day
  3. never look at the Sun
  4. the amount of water
  5. False
  6. we change it
  7. we keep it the same
  8. a mirror
  9. 7
  10. the rainbow fades
  11. True
  12. turmeric powder
  13. 1
  14. True
  15. a small rainbow
  16. not needed
  17. False
  18. yeast
  19. bright sunlight
  20. a mirror
  21. needed
  22. a balloon
  23. the same glass
  24. a battery cell
  25. not needed
  26. False
  27. behind you
  28. a balloon
  29. not needed
  30. refraction
  31. a magnet
  32. the same window
  33. brightness of rainbow
  34. not needed
  35. 7
  36. a sheet of white paper
  37. False
  38. True
  39. we keep it the same
  40. needed

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