Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 284 · 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? True or false: the light we look in is the one thing we change. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) plain water (d) tamarind water
3. 3.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a magnet (c) white paper strips (d) a battery cell
4. 4.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) turmeric powder (d) a comb
6. 6.True or false: lemon juice is needed for the turmeric test. (a) True (b) False
7. 7.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) False (b) True
9. 9.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) an old shirt or apron (c) your school uniform (d) your best clothes
10. 10.True or false: tamarind water is neutral. (a) True (b) False
11. 11.True or false: detergent water is neutral. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) plain water (d) baking soda water
13. 13.⚖️ 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
14. 14.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
15. 15.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) tamarind water
16. 16.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) it turns green (d) reddish-brown
17. 17.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) soap solution (c) a balloon (d) white paper strips
18. 18.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
19. 19.True or false: turmeric powder is not needed for the turmeric test. (a) True (b) False
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a battery cell (c) soap solution (d) white paper strips
21. 21.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
22. 22.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) lemon juice (d) a comb
23. 23.⚖️ 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 colour we see (d) the light we look in
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a magnet (c) water (d) lemon juice
26. 26.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
27. 27.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) soap solution (c) a magnet (d) turmeric powder
28. 28.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) soap solution (c) sugar water (d) lemon juice
29. 29.True or false: vinegar is an acid. (a) False (b) True
30. 30.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
31. 31.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) mix bathroom cleaners (d) use only kitchen items
32. 32.🔮 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
33. 33.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) tamarind water (d) detergent water
34. 34.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) orange juice (d) plain water
35. 35.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) plain water (c) detergent water (d) baking soda water
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.⚖️ 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
38. 38.True or false: yeast is not needed for the turmeric test. (a) False (b) True
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
40. 40.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed

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