Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 815 · 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 rule keeps the turmeric test safe? (a) use only kitchen items (b) mix bathroom cleaners (c) sniff each bottle hard (d) sip each liquid
2. 2.True or false: turmeric powder is not needed for the turmeric test. (a) False (b) True
3. 3.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) white at once (c) bright blue (d) reddish
4. 4.🧺 Which of these is needed for the turmeric test? (a) a dropper or spoon (b) a magnet (c) a comb (d) a mirror
5. 5.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a mirror (c) water (d) yeast
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) soap solution (c) turmeric powder (d) lemon juice
8. 8.True or false: plain water is an acid. (a) True (b) False
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) turmeric powder (c) a mirror (d) lemon juice
10. 10.True or false: a magnet is not needed for the turmeric test. (a) True (b) False
11. 11.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) plain water (c) vinegar (d) lemon juice
12. 12.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) vinegar
13. 13.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False
15. 15.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it stays yellow (c) it turns black (d) it turns red
16. 16.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) lemon juice
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
18. 18.True or false: a balloon is needed for the turmeric test. (a) False (b) True
19. 19.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
20. 20.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns yellow again (b) it turns darker red (c) it turns blue (d) it disappears
21. 21.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
22. 22.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
24. 24.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
25. 25.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) detergent water (c) vinegar (d) tamarind water
26. 26.🧺 Which of these is needed for the turmeric test? (a) a comb (b) yeast (c) lemon juice (d) a mirror
27. 27.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
28. 28.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) tamarind water (d) soap solution
29. 29.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
30. 30.True or false: a mirror is not needed for the turmeric test. (a) False (b) True
31. 31.True or false: a mirror is needed for the turmeric test. (a) True (b) False
32. 32.⚖️ 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
33. 33.⚖️ 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 number of drops (c) the liquid we test (d) the light we look in
34. 34.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) turmeric powder (c) a mirror (d) lemon juice
35. 35.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) turmeric powder (c) a balloon (d) a magnet
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the liquid we test (c) the colour we see
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) baking soda water (d) tamarind water
39. 39.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
40. 40.True or false: a magnet is needed for the turmeric test. (a) True (b) False

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