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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 337 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a battery cell (b) white paper strips (c) soap solution (d) water
  2. 2.True or false: a dropper or spoon is needed for the turmeric test. (a) True (b) False
  3. 3.⚖️ 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
  4. 4.🫧 Which of these is neutral? (a) sugar water (b) baking soda water (c) tamarind water (d) curd
  5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a balloon (c) turmeric powder (d) a mirror
  7. 7.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
  8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the colour we see (c) the turmeric paper (d) the light we look in
  9. 9.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
  10. 10.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
  11. 11.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) a comb (d) lemon juice
  12. 12.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) a pulley (c) a magnet (d) an indicator
  13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
  14. 14.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) use only kitchen items (d) mix bathroom cleaners
  15. 15.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a mirror (c) yeast (d) water
  16. 16.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
  17. 17.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) salt water (c) tamarind water (d) vinegar
  18. 18.🟡 Turmeric paper meets lemon juice. What happens? (a) stays yellow (b) turns reddish-brown
  19. 19.True or false: a magnet is needed for the turmeric test. (a) True (b) False
  20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
  21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a dropper or spoon (c) white paper strips (d) a balloon
  22. 22.True or false: plain water is neutral. (a) False (b) True
  23. 23.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) reddish-brown (c) it stays yellow (d) it turns blue
  24. 24.🟡 Which of these turns turmeric reddish-brown? (a) detergent water (b) vinegar (c) sugar water (d) plain water
  25. 25.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) baking soda water (d) soap solution
  26. 26.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
  27. 27.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it stays yellow (c) it turns blue (d) it turns black
  28. 28.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
  29. 29.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
  30. 30.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  31. 31.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
  32. 32.True or false: water is needed for the turmeric test. (a) True (b) False
  33. 33.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
  34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
  35. 35.True or false: salt water keeps turmeric yellow. (a) False (b) True
  36. 36.🧺 Which of these is not needed for the turmeric test? (a) water (b) lemon juice (c) a mirror (d) white paper strips
  37. 37.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a dropper or spoon (c) water (d) a magnet
  38. 38.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
  39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we keep it the same (c) we change it
  40. 40.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) yeast (c) soap solution (d) water

Answer key

  1. a battery cell
  2. True
  3. we measure it
  4. sugar water
  5. we keep it the same
  6. turmeric powder
  7. stays yellow
  8. the colour we see
  9. stays yellow
  10. needed
  11. a comb
  12. an indicator
  13. False
  14. use only kitchen items
  15. water
  16. True
  17. baking soda water
  18. stays yellow
  19. False
  20. False
  21. a balloon
  22. True
  23. reddish-brown
  24. detergent water
  25. vinegar
  26. needed
  27. it stays yellow
  28. turns reddish-brown
  29. an acid
  30. an acid
  31. needed
  32. True
  33. not needed
  34. False
  35. True
  36. a mirror
  37. a magnet
  38. not needed
  39. we change it
  40. yeast

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