← Make a rainbow with water and sunlight lesson New set →

Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 291 · 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.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) bright sunlight (c) a sunny window (d) a clear glass of water
  2. 2.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
  3. 3.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  4. 4.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
  5. 5.🌈 In VIBGYOR, what number colour is indigo?
  6. 6.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
  7. 7.🌈 In VIBGYOR, what number colour is red?
  8. 8.⚖️ 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
  9. 9.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny bits of dust (c) tiny drops of water (d) only yellow light
  10. 10.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) balloons (c) magnets (d) clouds
  11. 11.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) turmeric powder (d) a sheet of white paper
  12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a mirror (d) a clear glass of water
  13. 13.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
  14. 14.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) the rainbow fades (c) it floats away (d) it turns all red
  15. 15.🌈 In VIBGYOR, what number colour is blue?
  16. 16.🌈 In VIBGYOR, what number colour is green?
  17. 17.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the paper makes colours (d) the water is coloured
  18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) bright sunlight (c) a sunny window (d) a sheet of white paper
  19. 19.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) green (c) red (d) violet
  20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) turmeric powder (c) bright sunlight (d) a clear glass of water
  21. 21.⚖️ 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 time of day (b) the same window (c) the amount of water (d) brightness of rainbow
  22. 22.🌈 In VIBGYOR, what number colour is violet?
  23. 23.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
  24. 24.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it through glass (c) look at it in a mirror (d) stare at the Sun
  25. 25.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a sunny window (d) turmeric powder
  26. 26.🌈 In VIBGYOR, what number colour is yellow?
  27. 27.⚖️ 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) True (b) False
  28. 28.🌈 In VIBGYOR, what number colour is orange?
  29. 29.⚖️ 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
  30. 30.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
  31. 31.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) yellow (c) orange (d) red
  32. 32.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
  33. 33.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) bright sunlight (d) a sunny window
  34. 34.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
  35. 35.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
  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 same white paper
  37. 37.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
  38. 38.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a balloon (c) a battery cell (d) bright sunlight
  39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
  40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) True (b) False

Answer key

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

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