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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 456 · 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.🧺 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 mirror
  2. 2.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
  3. 3.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) turmeric powder (d) a clear glass of water
  4. 4.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
  5. 5.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) blue (c) violet (d) green
  6. 6.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
  7. 7.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) False (b) True
  8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns all red (c) it floats away (d) it turns brighter
  9. 9.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
  11. 11.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
  12. 12.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a battery cell (c) a sunny window (d) a clear glass of water
  13. 13.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the water is coloured (c) the glass is painted (d) the paper makes colours
  14. 14.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) balloons (c) magnets (d) clouds
  15. 15.🧺 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) a balloon (d) bright sunlight
  16. 16.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so the Sun moves (d) so it gets hot
  17. 17.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
  18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
  19. 19.⚖️ 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 white paper
  20. 20.🌈 In VIBGYOR, what number colour is orange?
  21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
  22. 22.🧺 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 sunny window (d) turmeric powder
  23. 23.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sunny window (c) a balloon (d) yeast
  24. 24.⚖️ 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 time of day
  25. 25.⚖️ 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
  26. 26.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) yeast (c) a sunny window (d) bright sunlight
  27. 27.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
  28. 28.⚖️ 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 window (c) the amount of water
  29. 29.⚖️ 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 same white paper (b) the same glass (c) the same window (d) brightness of rainbow
  30. 30.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
  31. 31.⚖️ 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) the same glass (c) brightness of rainbow (d) the same white paper
  32. 32.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
  33. 33.☀️ What is white sunlight really made of? (a) only yellow light (b) many colours mixed (c) tiny bits of dust (d) tiny drops of water
  34. 34.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) turmeric powder (d) a sheet of white paper
  35. 35.🌈 In VIBGYOR, what number colour is violet?
  36. 36.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it through glass (d) look at it in a mirror
  37. 37.⚖️ 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) False (b) True
  38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) False (b) True
  39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
  40. 40.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a magnet (c) a sheet of white paper (d) a clear glass of water

Answer key

  1. a mirror
  2. False
  3. a clear glass of water
  4. False
  5. red
  6. not needed
  7. False
  8. the rainbow fades
  9. 7
  10. True
  11. not needed
  12. a battery cell
  13. water splits the light
  14. prisms
  15. a balloon
  16. so it does not fall
  17. refraction
  18. a magnet
  19. the same white paper
  20. 6
  21. we keep it the same
  22. turmeric powder
  23. a sunny window
  24. the time of day
  25. the same glass
  26. yeast
  27. False
  28. the same window
  29. brightness of rainbow
  30. not needed
  31. the amount of water
  32. not needed
  33. many colours mixed
  34. turmeric powder
  35. 1
  36. never look at the Sun
  37. False
  38. False
  39. True
  40. a magnet

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