Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 222 · 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? Which of these is the one thing we change? (a) the turmeric paper (b) the liquid we test (c) the light we look in (d) the number of drops
2. 2.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it stays yellow (c) it turns blue (d) it turns green
3. 3.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sniff each bottle hard (c) sip each liquid (d) mix bathroom cleaners
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) white paper strips (d) yeast
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) white paper strips (c) a dropper or spoon (d) water
7. 7.⚖️ 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
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) False (b) True
9. 9.🫧 Which of these is an acid? (a) tamarind water (b) sugar water (c) baking soda water (d) soap solution
10. 10.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
11. 11.🫧 Which of these is neutral? (a) baking soda water (b) detergent water (c) plain water (d) curd
12. 12.🧺 Which of these is needed for the turmeric test? (a) yeast (b) white paper strips (c) a balloon (d) a comb
13. 13.True or false: salt water is an acid. (a) False (b) True
14. 14.True or false: plain water is neutral. (a) False (b) True
15. 15.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
16. 16.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) soap solution (d) salt water
18. 18.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) green (c) white at once (d) reddish
19. 19.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) baking soda water (c) lemon juice (d) salt water
20. 20.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
21. 21.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) plain water (d) soap solution
22. 22.True or false: a dropper or spoon is not needed for the turmeric test. (a) True (b) False
23. 23.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) lemon juice (c) turmeric powder (d) a balloon
24. 24.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
25. 25.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
26. 26.True or false: orange juice is neutral. (a) False (b) True
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) a white party dress (d) an old shirt or apron
29. 29.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it turns black (c) it turns red (d) it stays yellow
30. 30.🫧 Which of these is a base? (a) baking soda water (b) orange juice (c) vinegar (d) salt water
31. 31.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) reddish-brown (c) bright blue (d) green
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a magnet (c) a battery cell (d) water
34. 34.True or false: curd is an acid. (a) True (b) False
35. 35.True or false: orange juice is an acid. (a) False (b) True
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🧺 Which of these is not needed for the turmeric test? (a) yeast (b) lemon juice (c) soap solution (d) water
38. 38.🔍 Which is the odd one out? (a) lemon juice (b) sugar water (c) salt water (d) detergent water
39. 39.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
40. 40.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) soap solution (c) salt water (d) plain water

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