Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 767 · 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.⚖️ 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
2. 2.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) a battery cell (d) white paper strips
3. 3.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
4. 4.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
5. 5.🟡 Why does soap solution change turmeric’s colour? (a) soap is an acid (b) soap is hot (c) soap water is a base (d) soap is magnetic
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) water (c) soap solution (d) yeast
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) white paper strips (c) soap solution (d) lemon juice
9. 9.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
10. 10.True or false: water is needed for the turmeric test. (a) True (b) False
11. 11.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) water (c) soap solution (d) a balloon
12. 12.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) sugar water (c) soap solution (d) plain water
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
14. 14.True or false: salt water keeps turmeric yellow. (a) True (b) False
15. 15.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
17. 17.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
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 liquid we test (c) the turmeric paper
19. 19.True or false: plain water turns turmeric reddish-brown. (a) False (b) True
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
21. 21.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) mix bathroom cleaners (d) sip each liquid
22. 22.🧺 Do we need a comb for the turmeric test? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the turmeric test? (a) a mirror (b) turmeric powder (c) water (d) a dropper or spoon
24. 24.🫧 Which of these is neutral? (a) tamarind water (b) detergent water (c) salt water (d) baking soda water
25. 25.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) turmeric powder (c) water (d) a comb
26. 26.🧺 Which of these is not needed for the turmeric test? (a) water (b) white paper strips (c) a battery cell (d) soap solution
27. 27.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) white paper strips (c) a battery cell (d) lemon juice
29. 29.True or false: detergent water keeps turmeric yellow. (a) False (b) True
30. 30.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
31. 31.True or false: yeast is needed for the turmeric test. (a) True (b) False
32. 32.⚖️ 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 light we look in (d) the number of drops
33. 33.🧺 Which of these is needed for the turmeric test? (a) a comb (b) lemon juice (c) a battery cell (d) a magnet
34. 34.🫧 Which of these is a base? (a) lemon juice (b) orange juice (c) baking soda water (d) tamarind water
35. 35.True or false: yeast is not needed for the turmeric test. (a) False (b) True
36. 36.🫧 Which of these is a base? (a) tamarind water (b) vinegar (c) soap solution (d) curd
37. 37.True or false: plain water keeps turmeric yellow. (a) False (b) True
38. 38.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it stays yellow (c) it turns red (d) it turns black
39. 39.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
40. 40.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) an old shirt or apron (d) your best clothes

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