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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 884 · 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 keep it the same (b) we measure it (c) we change it
  2. 2.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) yeast (c) soap solution (d) white paper strips
  3. 3.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) tamarind water (d) salt water
  4. 4.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) salt water (c) baking soda water (d) soap solution
  5. 5.True or false: tamarind water turns turmeric reddish-brown. (a) False (b) True
  6. 6.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) tamarind water (d) soap solution
  7. 7.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) tamarind water
  8. 8.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
  9. 9.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns red (c) it turns blue (d) it turns black
  10. 10.True or false: sugar water is neutral. (a) True (b) False
  11. 11.True or false: plain water is neutral. (a) False (b) True
  12. 12.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
  13. 13.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  14. 14.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
  15. 15.True or false: soap solution is a base. (a) False (b) True
  16. 16.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) detergent water (c) salt water (d) tamarind water
  17. 17.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
  18. 18.🫧 Which of these is neutral? (a) detergent water (b) tamarind water (c) soap solution (d) sugar water
  19. 19.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) sugar water (d) tamarind water
  20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
  21. 21.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
  22. 22.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
  23. 23.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
  24. 24.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) white paper strips (c) yeast (d) water
  25. 25.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) soap solution (c) lemon juice (d) sugar water
  26. 26.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) plain water (d) detergent water
  27. 27.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) vinegar
  28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we keep it the same (c) we measure it
  29. 29.True or false: lemon juice is an acid. (a) True (b) False
  30. 30.True or false: curd is an acid. (a) False (b) True
  31. 31.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
  32. 32.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it turns green (c) it stays yellow (d) it turns blue
  33. 33.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) plain water (c) lemon juice (d) vinegar
  34. 34.🫧 Which of these is a base? (a) salt water (b) vinegar (c) baking soda water (d) tamarind water
  35. 35.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
  36. 36.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
  37. 37.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) plain water (d) detergent water
  38. 38.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
  39. 39.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) white paper strips (c) a battery cell (d) water
  40. 40.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) white paper strips (c) a battery cell (d) lemon juice

Answer key

  1. we keep it the same
  2. yeast
  3. baking soda water
  4. salt water
  5. False
  6. tamarind water
  7. tamarind water
  8. needed
  9. it stays yellow
  10. True
  11. True
  12. not needed
  13. an acid
  14. turns reddish-brown
  15. True
  16. detergent water
  17. neutral
  18. sugar water
  19. tamarind water
  20. True
  21. stays yellow
  22. True
  23. True
  24. yeast
  25. soap solution
  26. plain water
  27. vinegar
  28. we measure it
  29. True
  30. True
  31. not needed
  32. reddish-brown
  33. baking soda water
  34. baking soda water
  35. True
  36. not needed
  37. plain water
  38. not needed
  39. a battery cell
  40. a battery cell

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