Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 987 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a dropper or spoon (c) soap solution (d) a battery cell
2. 2.🧺 Which of these is not needed for the turmeric test? (a) water (b) white paper strips (c) soap solution (d) a mirror
3. 3.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) True (b) False
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the liquid we test (b) the turmeric paper (c) the colour we see (d) the light we look in
6. 6.True or false: a magnet is needed for the turmeric test. (a) False (b) True
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) False (b) True
8. 8.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
9. 9.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) plain water (d) baking soda water
10. 10.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns blue (c) it turns black (d) it turns red
11. 11.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
12. 12.True or false: a mirror is needed for the turmeric test. (a) True (b) False
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) a balloon (c) water (d) lemon juice
15. 15.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns blue (c) it turns green (d) reddish-brown
16. 16.🫧 Which of these is neutral? (a) vinegar (b) baking soda water (c) tamarind water (d) sugar water
17. 17.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
18. 18.True or false: a comb is not needed for the turmeric test. (a) True (b) False
19. 19.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
20. 20.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) plain water (d) vinegar
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the turmeric paper (c) the colour we see (d) the liquid we test
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a balloon (c) lemon juice (d) soap solution
23. 23.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
24. 24.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) salt water (c) tamarind water (d) sugar water
25. 25.⚖️ 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
26. 26.🫧 Which of these is an acid? (a) detergent water (b) salt water (c) soap solution (d) vinegar
27. 27.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
28. 28.True or false: a balloon is needed for the turmeric test. (a) True (b) False
29. 29.🫧 Which of these is an acid? (a) orange juice (b) sugar water (c) plain water (d) baking soda water
30. 30.⚖️ 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
31. 31.True or false: salt water keeps turmeric yellow. (a) False (b) True
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.True or false: detergent water is neutral. (a) True (b) False
34. 34.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) an old shirt or apron (c) your school uniform (d) a white party dress
35. 35.🫧 Which of these is neutral? (a) baking soda water (b) lemon juice (c) plain water (d) detergent water
36. 36.True or false: plain water is neutral. (a) False (b) True
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the colour we see (c) the liquid we test
38. 38.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) sugar water (d) soap solution
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
40. 40.⚖️ 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 keep it the same (c) we change it

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