Turmeric Indicator Experiment Worksheet

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

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