Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 571 · 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 colour we see is what we measure. (a) False (b) True
2. 2.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) your best clothes (c) an old shirt or apron (d) a white party dress
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.True or false: yeast is not needed for the turmeric test. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) sugar water
7. 7.🧺 Which of these is not needed for the turmeric test? (a) water (b) a dropper or spoon (c) a balloon (d) lemon juice
8. 8.⚖️ 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
9. 9.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) mix bathroom cleaners (d) sniff each bottle hard
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) soap solution (c) a balloon (d) white paper strips
11. 11.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) lemon juice
12. 12.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it stays yellow (c) it turns blue (d) reddish-brown
13. 13.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
14. 14.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a balloon (c) turmeric powder (d) a magnet
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) orange juice (d) salt water
17. 17.True or false: a mirror is not needed for the turmeric test. (a) False (b) True
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the colour we see (c) the liquid we test (d) the turmeric paper
19. 19.True or false: sugar water keeps turmeric yellow. (a) True (b) False
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) soap solution (c) a battery cell (d) water
21. 21.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) lemon juice (c) a battery cell (d) white paper strips
22. 22.🧺 Which of these is needed for the turmeric test? (a) a dropper or spoon (b) a balloon (c) a battery cell (d) a comb
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the number of drops (b) the liquid we test (c) the colour we see
24. 24.🧺 Which of these is needed for the turmeric test? (a) lemon juice (b) a comb (c) a mirror (d) a magnet
25. 25.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) white paper strips (c) water (d) lemon juice
26. 26.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the light we look in (c) the liquid we test
28. 28.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) tamarind water (d) soap solution
29. 29.🫧 Which of these is neutral? (a) detergent water (b) sugar water (c) orange juice (d) baking soda water
30. 30.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) turmeric powder (c) a comb (d) water
31. 31.🟡 Which of these turns turmeric paper reddish-brown? (a) lemon juice (b) vinegar (c) sugar water (d) soap solution
32. 32.⚖️ 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
33. 33.True or false: a balloon is needed for the turmeric test. (a) True (b) False
34. 34.🧺 Which of these is not needed for the turmeric test? (a) a magnet (b) soap solution (c) water (d) lemon juice
35. 35.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
36. 36.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) it stays white (c) reddish-brown (d) green
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
38. 38.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) soap solution (c) plain water (d) lemon juice
39. 39.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
40. 40.True or false: a dropper or spoon is needed for the turmeric test. (a) True (b) False

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