← Turmeric indicator: acid or base? lesson New set →

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 211 · 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.

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

Answer key

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

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