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Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 52 · 40 questions
TalentJR

What you do (Yellow or red?): 1. Mix turmeric powder with a little water into a paste and paint it on white paper strips; let them dry. 2. Put a drop of soap solution on one strip and a drop of lemon juice on another. 3. Write down the colour each drop makes. 4. Add lemon juice to the reddish spot and watch it change back.

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  1. 1.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a balloon (c) soap solution (d) a dropper or spoon
  2. 2.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
  3. 3.True or false: tamarind water is a base. (a) False (b) True
  4. 4.True or false: baking soda water is an acid. (a) True (b) False
  5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) turmeric powder (c) a balloon (d) water
  6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
  7. 7.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a battery cell (c) turmeric powder (d) yeast
  8. 8.🟡 Turmeric paper meets plain water. What happens? (a) stays yellow (b) turns reddish-brown
  9. 9.🧺 Which of these is needed for the turmeric test? (a) a comb (b) soap solution (c) a balloon (d) a battery cell
  10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
  11. 11.True or false: plain water turns turmeric reddish-brown. (a) False (b) True
  12. 12.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
  13. 13.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) water (c) a dropper or spoon (d) yeast
  14. 14.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns black (c) it stays yellow (d) it turns blue
  15. 15.True or false: yeast is needed for the turmeric test. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) baking soda water (d) soap solution
  17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
  18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we change it (c) we keep it the same
  19. 19.True or false: a mirror is needed for the turmeric test. (a) True (b) False
  20. 20.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) a white party dress (c) an old shirt or apron (d) your best clothes
  21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
  22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the number of drops (c) the turmeric paper (d) the colour we see
  23. 23.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
  24. 24.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) detergent water (d) tamarind water
  25. 25.🟡 Why does soap solution change turmeric’s colour? (a) soap is an acid (b) soap is magnetic (c) soap is hot (d) soap water is a base
  26. 26.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it stays yellow (c) it turns green (d) it turns blue
  27. 27.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) sugar water (d) detergent water
  28. 28.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) turmeric powder (c) water (d) a battery cell
  29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) turmeric powder (c) a dropper or spoon (d) a magnet
  30. 30.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) mix bathroom cleaners (d) use only kitchen items
  31. 31.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
  32. 32.True or false: sugar water keeps turmeric yellow. (a) False (b) True
  33. 33.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
  34. 34.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) detergent water (d) soap solution
  35. 35.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) plain water (d) soap solution
  36. 36.🫧 Which of these is neutral? (a) baking soda water (b) salt water (c) vinegar (d) soap solution
  37. 37.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a mirror (c) a comb (d) lemon juice
  38. 38.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) baking soda water (c) tamarind water (d) sugar water
  39. 39.🫧 Which of these is a base? (a) baking soda water (b) vinegar (c) tamarind water (d) lemon juice
  40. 40.🧺 Do we need water for the turmeric test? (a) not needed (b) needed

Answer key

  1. a balloon
  2. True
  3. False
  4. False
  5. a balloon
  6. True
  7. turmeric powder
  8. stays yellow
  9. soap solution
  10. False
  11. False
  12. turns reddish-brown
  13. yeast
  14. it stays yellow
  15. False
  16. lemon juice
  17. True
  18. we keep it the same
  19. False
  20. an old shirt or apron
  21. True
  22. the colour we see
  23. not needed
  24. tamarind water
  25. soap water is a base
  26. reddish-brown
  27. detergent water
  28. a battery cell
  29. a magnet
  30. use only kitchen items
  31. True
  32. True
  33. needed
  34. vinegar
  35. soap solution
  36. salt water
  37. lemon juice
  38. baking soda water
  39. baking soda water
  40. needed

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