Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 504 · 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.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) an old shirt or apron (c) your best clothes (d) your school uniform
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) False (b) True
3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) a battery cell (d) soap solution
4. 4.🫧 Which of these is a base? (a) lemon juice (b) salt water (c) soap solution (d) tamarind water
5. 5.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a magnet (c) soap solution (d) a balloon
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.⚖️ 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 number of drops (c) the turmeric paper (d) the colour we see
8. 8.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) white paper strips (d) a magnet
10. 10.⚖️ 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
11. 11.True or false: plain water turns turmeric reddish-brown. (a) True (b) False
12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) soap solution (c) lemon juice (d) water
13. 13.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) tamarind water (d) soap solution
14. 14.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
15. 15.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) vinegar (d) soap solution
18. 18.True or false: vinegar turns turmeric reddish-brown. (a) True (b) False
19. 19.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
21. 21.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
22. 22.🟡 Which of these keeps turmeric yellow? (a) plain water (b) detergent water (c) soap solution (d) baking soda water
23. 23.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) baking soda water (d) vinegar
24. 24.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it stays yellow (b) it turns blue (c) it turns red (d) it turns black
26. 26.True or false: sugar water turns turmeric reddish-brown. (a) True (b) False
27. 27.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a battery cell (c) a balloon (d) a dropper or spoon
28. 28.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
29. 29.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
30. 30.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns yellow again (c) it turns darker red (d) it turns blue
31. 31.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a dropper or spoon (c) white paper strips (d) a comb
32. 32.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) soap solution (d) vinegar
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) water (c) a dropper or spoon (d) white paper strips
34. 34.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it stays yellow (c) it turns red (d) it turns black
35. 35.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
36. 36.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) bright blue (d) reddish-brown
37. 37.True or false: soap solution is needed for the turmeric test. (a) False (b) True
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) True (b) False
39. 39.True or false: a magnet is needed for the turmeric test. (a) False (b) True
40. 40.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) vinegar (c) soap solution (d) lemon juice

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