Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 973 · 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? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a dropper or spoon (c) a magnet (d) soap solution
6. 6.🫧 Which of these is a base? (a) plain water (b) sugar water (c) detergent water (d) tamarind water
7. 7.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) white at once (c) reddish (d) green
8. 8.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) mix bathroom cleaners (c) sip each liquid (d) use only kitchen items
9. 9.True or false: soap solution keeps turmeric yellow. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
11. 11.True or false: sugar water is an acid. (a) False (b) True
12. 12.⚖️ 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
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the colour we see (c) the turmeric paper (d) the liquid we test
14. 14.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a battery cell (c) a comb (d) turmeric powder
15. 15.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a magnet (c) yeast (d) a dropper or spoon
16. 16.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
17. 17.True or false: vinegar turns turmeric reddish-brown. (a) False (b) True
18. 18.⚖️ 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
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) True (b) False
20. 20.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
21. 21.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) tamarind water (d) sugar water
22. 22.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
23. 23.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) yeast (c) a comb (d) water
24. 24.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) lemon juice
25. 25.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
26. 26.🧺 Which of these is not needed for the turmeric test? (a) water (b) turmeric powder (c) yeast (d) lemon juice
27. 27.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
28. 28.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) lemon juice (c) white paper strips (d) yeast
30. 30.🫧 Which of these is an acid? (a) salt water (b) tamarind water (c) baking soda water (d) detergent water
31. 31.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
32. 32.🫧 Which of these is neutral? (a) plain water (b) soap solution (c) detergent water (d) curd
33. 33.🧺 Which of these is not needed for the turmeric test? (a) a magnet (b) soap solution (c) lemon juice (d) a dropper or spoon
34. 34.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) soap solution (c) white paper strips (d) a dropper or spoon
35. 35.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
36. 36.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
37. 37.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it turns black (c) it stays yellow (d) it turns blue
38. 38.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
39. 39.⚖️ 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 light we look in (c) the liquid we test (d) the turmeric paper
40. 40.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it stays yellow (c) reddish-brown (d) it turns blue

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