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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 969 · 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.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we measure it (c) we keep it the same
  2. 2.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) it turns green (d) reddish-brown
  3. 3.True or false: detergent water is an acid. (a) True (b) False
  4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
  5. 5.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) detergent water (d) lemon juice
  6. 6.True or false: plain water is an acid. (a) True (b) False
  7. 7.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) plain water (d) baking soda water
  8. 8.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
  9. 9.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) your best clothes (c) your school uniform (d) a white party dress
  10. 10.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) sniff each bottle hard (d) use only kitchen items
  11. 11.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  12. 12.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
  13. 13.🟡 Why does soap solution change turmeric’s colour? (a) soap is magnetic (b) soap water is a base (c) soap is hot (d) soap is an acid
  14. 14.🧺 Which of these is not needed for the turmeric test? (a) a comb (b) a dropper or spoon (c) water (d) turmeric powder
  15. 15.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) salt water (c) baking soda water (d) sugar water
  16. 16.⚖️ 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
  17. 17.True or false: lemon juice turns turmeric reddish-brown. (a) True (b) False
  18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
  19. 19.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
  20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) a magnet (d) turmeric powder
  21. 21.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
  22. 22.True or false: detergent water is neutral. (a) True (b) False
  23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the light we look in (c) the liquid we test
  24. 24.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) sugar water (d) soap solution
  25. 25.🫧 Which of these is an acid? (a) soap solution (b) detergent water (c) lemon juice (d) salt water
  26. 26.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns red (c) it turns blue (d) it stays yellow
  27. 27.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) soap solution (c) lemon juice (d) sugar water
  28. 28.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a comb (c) turmeric powder (d) a mirror
  29. 29.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
  30. 30.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) a battery cell (d) lemon juice
  31. 31.True or false: sugar water keeps turmeric yellow. (a) True (b) False
  32. 32.True or false: vinegar is a base. (a) True (b) False
  33. 33.🧺 Which of these is not needed for the turmeric test? (a) water (b) turmeric powder (c) a mirror (d) a dropper or spoon
  34. 34.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
  35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
  36. 36.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the number of drops (c) the liquid we test (d) the colour we see
  38. 38.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
  39. 39.True or false: a battery cell is not needed for the turmeric test. (a) False (b) True
  40. 40.True or false: orange juice is an acid. (a) True (b) False

Answer key

  1. we keep it the same
  2. reddish-brown
  3. False
  4. we keep it the same
  5. detergent water
  6. False
  7. plain water
  8. False
  9. an old shirt or apron
  10. use only kitchen items
  11. an acid
  12. stays yellow
  13. soap water is a base
  14. a comb
  15. baking soda water
  16. we change it
  17. False
  18. we keep it the same
  19. neutral
  20. a magnet
  21. False
  22. False
  23. the light we look in
  24. sugar water
  25. lemon juice
  26. it stays yellow
  27. soap solution
  28. turmeric powder
  29. neutral
  30. a battery cell
  31. True
  32. False
  33. a mirror
  34. stays yellow
  35. False
  36. an acid
  37. the colour we see
  38. needed
  39. True
  40. True

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