Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 257 · 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 a base? (a) sugar water (b) salt water (c) vinegar (d) detergent water
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) False (b) True
3. 3.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
4. 4.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) detergent water (d) baking soda water
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) lemon juice (c) water (d) a comb
6. 6.True or false: a mirror is needed for the turmeric test. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) plain water
8. 8.🔮 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) reddish (d) green
9. 9.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
10. 10.🛟 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
11. 11.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) tamarind water (d) baking soda water
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
14. 14.True or false: a dropper or spoon is needed for the turmeric test. (a) False (b) True
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.True or false: sugar water is a base. (a) True (b) False
17. 17.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a comb (c) white paper strips (d) a battery cell
18. 18.🫧 Which of these is a base? (a) plain water (b) tamarind water (c) vinegar (d) baking soda water
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
21. 21.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) yeast (c) turmeric powder (d) a magnet
22. 22.⚖️ 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
23. 23.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a magnet (c) a mirror (d) water
25. 25.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
26. 26.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
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 number of drops (c) the liquid we test
28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) turmeric powder (c) yeast (d) water
29. 29.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
30. 30.⚖️ 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
31. 31.True or false: detergent water keeps turmeric yellow. (a) True (b) False
32. 32.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
33. 33.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it stays yellow (c) it turns blue (d) it turns red
34. 34.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) lemon juice (c) vinegar (d) soap solution
35. 35.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
36. 36.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) soap solution (c) a comb (d) a battery cell
37. 37.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a dropper or spoon (c) soap solution (d) a balloon
38. 38.⚖️ 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
39. 39.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
40. 40.🟡 Which of these keeps turmeric yellow? (a) salt water (b) baking soda water (c) detergent water (d) soap solution

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