Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 674 · 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) white paper strips (b) water (c) yeast (d) turmeric powder
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
4. 4.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
5. 5.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
6. 6.⚖️ 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
7. 7.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
8. 8.🧺 Which of these is not needed for the turmeric test? (a) water (b) white paper strips (c) yeast (d) turmeric powder
9. 9.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) plain water (c) detergent water (d) vinegar
10. 10.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) tamarind water (c) plain water (d) baking soda water
11. 11.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
12. 12.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns blue (c) it turns red (d) it stays yellow
13. 13.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) bright blue (c) green (d) reddish
14. 14.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) white paper strips (c) a magnet (d) turmeric powder
16. 16.🛟 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
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
18. 18.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) water (c) a battery cell (d) a dropper or spoon
19. 19.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
20. 20.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) baking soda water (d) sugar water
21. 21.⚖️ 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
22. 22.⚖️ 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 turmeric paper (d) the light we look in
23. 23.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) water (d) yeast
24. 24.🟡 Turmeric paper meets plain water. What happens? (a) stays yellow (b) turns reddish-brown
25. 25.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
26. 26.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
27. 27.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) False (b) True
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the turmeric test? (a) white paper strips (b) yeast (c) a mirror (d) a balloon
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
32. 32.🔮 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
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) water (c) a dropper or spoon (d) a comb
34. 34.🫧 Which of these is a base? (a) sugar water (b) vinegar (c) detergent water (d) salt water
35. 35.True or false: turmeric powder is needed for the turmeric test. (a) False (b) True
36. 36.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a mirror (c) turmeric powder (d) a battery cell
37. 37.⚖️ 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
38. 38.True or false: turmeric powder is not needed for the turmeric test. (a) False (b) True
39. 39.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) reddish-brown (b) bright blue (c) green (d) it stays white
40. 40.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) vinegar (c) soap solution (d) lemon juice

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