Turmeric Indicator Experiment Worksheet

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

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