Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 76 · 40 questions

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.

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

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