Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 390 · 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 turmeric paper is the one thing we change. (a) True (b) False
2. 2.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
3. 3.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) a white party dress (c) your school uniform (d) your best clothes
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the light we look in (c) the number of drops (d) the liquid we test
5. 5.True or false: tamarind water is an acid. (a) True (b) False
6. 6.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the turmeric paper (b) the colour we see (c) the liquid we test (d) the light we look in
8. 8.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) plain water (d) soap solution
9. 9.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) vinegar (c) detergent water (d) tamarind water
10. 10.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
11. 11.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
12. 12.True or false: water is needed for the turmeric test. (a) False (b) True
13. 13.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (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? What do we do with “the liquid we test”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) lemon juice (c) a battery cell (d) yeast
18. 18.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) sugar water (d) baking soda water
19. 19.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) sniff each bottle hard (d) use only kitchen items
20. 20.True or false: curd is a base. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) sugar water (d) baking soda water
22. 22.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) lemon juice (d) soap solution
23. 23.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns blue (c) it stays yellow (d) it turns black
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a battery cell (c) a dropper or spoon (d) soap solution
25. 25.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a magnet (c) a dropper or spoon (d) a comb
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the colour we see (c) the turmeric paper
27. 27.🫧 Which of these is a base? (a) curd (b) soap solution (c) salt water (d) vinegar
28. 28.True or false: yeast is needed for the turmeric test. (a) True (b) False
29. 29.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it turns blue (c) it stays yellow (d) reddish-brown
30. 30.🫧 Which of these is a base? (a) detergent water (b) orange juice (c) salt water (d) lemon juice
31. 31.⚖️ 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
32. 32.🟡 Why does soap solution change turmeric’s colour? (a) soap is hot (b) soap is an acid (c) soap water is a base (d) soap is magnetic
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the light we look in (c) the colour we see
34. 34.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a dropper or spoon (c) soap solution (d) yeast
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: a comb is not needed for the turmeric test. (a) True (b) False
37. 37.⚖️ 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
38. 38.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a dropper or spoon (c) lemon juice (d) a magnet
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) True (b) False
40. 40.🧺 Which of these is not needed for the turmeric test? (a) a mirror (b) water (c) lemon juice (d) soap solution

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