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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 902 · 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? True or false: the colour we see is the one thing we change. (a) False (b) True
  2. 2.🧺 Which of these is needed for the turmeric test? (a) yeast (b) soap solution (c) a mirror (d) a magnet
  3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) white paper strips (c) a balloon (d) soap solution
  4. 4.🫧 Which of these is a base? (a) baking soda water (b) vinegar (c) sugar water (d) tamarind water
  5. 5.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) lemon juice
  6. 6.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) reddish-brown (c) it turns green (d) it turns blue
  7. 7.True or false: plain water is neutral. (a) False (b) True
  8. 8.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
  9. 9.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  10. 10.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
  11. 11.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) vinegar
  12. 12.🔍 Which is the odd one out? (a) sugar water (b) soap solution (c) tamarind water (d) vinegar
  13. 13.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
  14. 14.True or false: water is needed for the turmeric test. (a) False (b) True
  15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the number of drops (c) the liquid we test (d) the light we look in
  16. 16.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
  17. 17.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) soap solution (c) salt water (d) plain water
  18. 18.⚖️ 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
  19. 19.🫧 Which of these is neutral? (a) baking soda water (b) orange juice (c) soap solution (d) sugar water
  20. 20.True or false: baking soda water is neutral. (a) True (b) False
  21. 21.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
  22. 22.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) sip each liquid (d) mix bathroom cleaners
  23. 23.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  24. 24.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) reddish (b) white at once (c) green (d) bright blue
  25. 25.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
  26. 26.🫧 Which of these is a base? (a) plain water (b) salt water (c) sugar water (d) detergent water
  27. 27.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) soap solution (c) baking soda water (d) detergent water
  28. 28.🫧 Which of these is neutral? (a) orange juice (b) detergent water (c) salt water (d) soap solution
  29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
  30. 30.🧺 Which of these is needed for the turmeric test? (a) a dropper or spoon (b) yeast (c) a battery cell (d) a comb
  31. 31.⚖️ 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
  32. 32.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
  33. 33.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
  34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the turmeric paper (c) the number of drops (d) the light we look in
  35. 35.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns blue (c) it stays yellow (d) it turns black
  36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
  37. 37.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) salt water (c) detergent water (d) baking soda water
  38. 38.True or false: baking soda water is a base. (a) False (b) True
  39. 39.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) soap solution (d) vinegar
  40. 40.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed

Answer key

  1. False
  2. soap solution
  3. a balloon
  4. baking soda water
  5. lemon juice
  6. reddish-brown
  7. True
  8. needed
  9. neutral
  10. stays yellow
  11. vinegar
  12. soap solution
  13. not needed
  14. True
  15. the liquid we test
  16. False
  17. soap solution
  18. the light we look in
  19. sugar water
  20. False
  21. needed
  22. use only kitchen items
  23. an acid
  24. reddish
  25. neutral
  26. detergent water
  27. lemon juice
  28. salt water
  29. we keep it the same
  30. a dropper or spoon
  31. we keep it the same
  32. an acid
  33. not needed
  34. the colour we see
  35. it stays yellow
  36. True
  37. salt water
  38. True
  39. vinegar
  40. not needed

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