Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 811 · 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.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) turmeric powder (c) a balloon (d) water
2. 2.True or false: a battery cell is needed for the turmeric test. (a) True (b) False
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) a white party dress (c) your best clothes (d) an old shirt or apron
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) turmeric powder (c) soap solution (d) a battery cell
6. 6.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) sugar water (d) salt water
7. 7.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) detergent water (d) plain water
8. 8.True or false: a comb is not needed for the turmeric test. (a) False (b) True
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) sniff each bottle hard (d) mix bathroom cleaners
11. 11.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it stays yellow (c) reddish-brown (d) it turns blue
12. 12.🧺 Which of these is not needed for the turmeric test? (a) yeast (b) turmeric powder (c) white paper strips (d) water
13. 13.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
14. 14.🫧 Which of these is a base? (a) detergent water (b) salt water (c) sugar water (d) tamarind water
15. 15.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a comb (c) white paper strips (d) a magnet
17. 17.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) plain water (d) soap solution
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the liquid we test (c) the turmeric paper
19. 19.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) sugar water (c) baking soda water (d) vinegar
20. 20.🧺 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) turmeric powder
21. 21.True or false: detergent water is neutral. (a) True (b) False
22. 22.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
23. 23.⚖️ 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 change it (c) we measure it
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) turmeric powder (c) white paper strips (d) soap solution
25. 25.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
26. 26.⚖️ 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 number of drops (c) the liquid we test (d) the turmeric paper
27. 27.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) white paper strips (c) water (d) a dropper or spoon
28. 28.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) plain water (d) baking soda water
30. 30.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
31. 31.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) baking soda water (d) soap solution
32. 32.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
33. 33.True or false: salt water is neutral. (a) True (b) False
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) soap solution (b) vinegar (c) baking soda water (d) detergent water
36. 36.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a mirror (c) soap solution (d) a comb
37. 37.True or false: detergent water is an acid. (a) False (b) True
38. 38.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns blue (b) it turns darker red (c) it turns yellow again (d) it disappears
39. 39.True or false: a dropper or spoon is not needed for the turmeric test. (a) False (b) True
40. 40.True or false: salt water keeps turmeric yellow. (a) False (b) True

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