Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 230 · 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 liquid we test (b) the turmeric paper (c) the number of drops (d) the light we look in
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) True (b) False
3. 3.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) use only kitchen items (d) mix bathroom cleaners
4. 4.🫧 Which of these is a base? (a) soap solution (b) orange juice (c) vinegar (d) lemon juice
5. 5.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
6. 6.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
7. 7.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the turmeric paper (c) the number of drops (d) the colour we see
9. 9.⚖️ 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
10. 10.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a prism (c) a pulley (d) a magnet
11. 11.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
12. 12.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) lemon juice (d) detergent water
13. 13.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a comb (c) water (d) turmeric powder
14. 14.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
15. 15.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) turmeric powder (c) lemon juice (d) a balloon
16. 16.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) a white party dress (c) an old shirt or apron (d) your best clothes
17. 17.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns red (c) it turns blue (d) it turns black
18. 18.True or false: soap solution is an acid. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) vinegar (b) plain water (c) soap solution (d) tamarind water
20. 20.🫧 Which of these is an acid? (a) plain water (b) sugar water (c) baking soda water (d) tamarind water
21. 21.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
22. 22.🫧 Which of these is neutral? (a) curd (b) soap solution (c) sugar water (d) orange juice
23. 23.⚖️ 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
24. 24.True or false: lemon juice is neutral. (a) True (b) False
25. 25.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
26. 26.🫧 Which of these is a base? (a) orange juice (b) tamarind water (c) sugar water (d) baking soda water
27. 27.True or false: detergent water is an acid. (a) True (b) False
28. 28.True or false: sugar water is an acid. (a) False (b) True
29. 29.🧺 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) yeast
30. 30.⚖️ 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 measure it (c) we change it
31. 31.True or false: soap solution keeps turmeric yellow. (a) False (b) True
32. 32.True or false: a magnet is not needed for the turmeric test. (a) True (b) False
33. 33.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) reddish (c) bright blue (d) white at once
34. 34.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
35. 35.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) tamarind water (d) baking soda water
36. 36.⚖️ 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
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
39. 39.True or false: yeast is needed for the turmeric test. (a) True (b) False
40. 40.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a battery cell (b) soap solution (c) water (d) turmeric powder

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