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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 928 · 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.🟡 Why does soap solution change turmeric’s colour? (a) soap is magnetic (b) soap is hot (c) soap water is a base (d) soap is an acid
  2. 2.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
  3. 3.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) water (c) a magnet (d) soap solution
  4. 4.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) an old shirt or apron (c) your best clothes (d) a white party dress
  5. 5.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
  6. 6.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  7. 7.🟡 Which of these turns turmeric reddish-brown? (a) detergent water (b) salt water (c) lemon juice (d) vinegar
  8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
  9. 9.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
  10. 10.⚖️ 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
  11. 11.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
  12. 12.⚖️ 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
  13. 13.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
  14. 14.True or false: baking soda water is a base. (a) True (b) False
  15. 15.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
  16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the turmeric paper (c) the colour we see
  17. 17.True or false: plain water is a base. (a) True (b) False
  18. 18.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) water (c) yeast (d) a balloon
  19. 19.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a pulley (c) an indicator (d) a prism
  20. 20.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) use only kitchen items (d) sip each liquid
  21. 21.True or false: baking soda water is an acid. (a) False (b) True
  22. 22.True or false: detergent water turns turmeric reddish-brown. (a) False (b) True
  23. 23.True or false: lemon juice is neutral. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) detergent water (d) plain water
  25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the number of drops (b) the liquid we test (c) the turmeric paper (d) the light we look in
  26. 26.True or false: yeast is not needed for the turmeric test. (a) False (b) True
  27. 27.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) plain water (c) baking soda water (d) lemon juice
  28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a battery cell (c) lemon juice (d) soap solution
  29. 29.True or false: lemon juice is a base. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) tamarind water
  31. 31.🫧 Which of these is neutral? (a) sugar water (b) orange juice (c) detergent water (d) baking soda water
  32. 32.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a magnet (c) a comb (d) white paper strips
  33. 33.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
  34. 34.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
  35. 35.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) sugar water (d) baking soda water
  36. 36.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
  37. 37.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  38. 38.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
  39. 39.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
  40. 40.🔮 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

Answer key

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

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