Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 951 · 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) sip each liquid (b) sniff each bottle hard (c) mix bathroom cleaners (d) use only kitchen items
2. 2.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) bright blue (c) green (d) reddish
3. 3.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
4. 4.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it stays yellow (c) it turns blue (d) it turns red
5. 5.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a battery cell (c) white paper strips (d) yeast
6. 6.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
7. 7.🔍 Which is the odd one out? (a) lemon juice (b) detergent water (c) soap solution (d) baking soda water
8. 8.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a comb (c) yeast (d) turmeric powder
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the light we look in (b) the turmeric paper (c) the liquid we test (d) the colour we see
10. 10.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
11. 11.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) yeast (c) soap solution (d) turmeric powder
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the colour we see (c) the number of drops (d) the turmeric paper
13. 13.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
14. 14.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) reddish-brown (c) bright blue (d) it stays white
15. 15.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
16. 16.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a mirror (c) yeast (d) lemon juice
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) True (b) False
18. 18.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) salt water (d) soap solution
19. 19.🟡 Which of these turns turmeric reddish-brown? (a) soap solution (b) lemon juice (c) tamarind water (d) sugar water
20. 20.True or false: detergent water turns turmeric reddish-brown. (a) False (b) True
21. 21.True or false: salt water is neutral. (a) False (b) True
22. 22.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) plain water (c) salt water (d) vinegar
23. 23.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) vinegar (d) sugar water
24. 24.🧺 Which of these is needed for the turmeric test? (a) yeast (b) water (c) a mirror (d) a balloon
25. 25.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
26. 26.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) lemon juice (d) baking soda water
27. 27.True or false: a comb is not needed for the turmeric test. (a) False (b) True
28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) white paper strips (d) a magnet
29. 29.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) reddish-brown (c) it turns blue (d) it turns green
30. 30.⚖️ 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
31. 31.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
32. 32.⚖️ 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 change it (c) we measure it
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) water (d) a mirror
34. 34.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns blue (c) it stays yellow (d) it turns red
35. 35.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
36. 36.🟡 Which of these keeps turmeric yellow? (a) plain water (b) detergent water (c) soap solution (d) baking soda water
37. 37.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
38. 38.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) white paper strips (c) a battery cell (d) turmeric powder
40. 40.True or false: salt water keeps turmeric yellow. (a) True (b) False

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