Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 748 · 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? Which of these is the one thing we change? (a) the turmeric paper (b) the light we look in (c) the liquid we test (d) the number of drops
2. 2.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) use only kitchen items (c) sip each liquid (d) sniff each bottle hard
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) white paper strips (c) turmeric powder (d) yeast
5. 5.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) detergent water (d) baking soda water
6. 6.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the liquid we test (c) the light we look in (d) the colour we see
8. 8.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
10. 10.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) it turns green (d) reddish-brown
11. 11.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
12. 12.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
13. 13.True or false: a comb is needed for the turmeric test. (a) True (b) False
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) white paper strips (c) a dropper or spoon (d) water
16. 16.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) lemon juice (d) baking soda water
17. 17.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
18. 18.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
19. 19.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
20. 20.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
21. 21.True or false: detergent water is an acid. (a) False (b) True
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) white paper strips (c) turmeric powder (d) a mirror
23. 23.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a mirror (c) water (d) a balloon
24. 24.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
25. 25.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
26. 26.🧺 Which of these is not needed for the turmeric test? (a) a balloon (b) water (c) soap solution (d) lemon juice
27. 27.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a dropper or spoon (c) a comb (d) white paper strips
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) turmeric powder (d) a balloon
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.🧺 Which of these is not needed for the turmeric test? (a) water (b) soap solution (c) lemon juice (d) a magnet
32. 32.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a dropper or spoon (c) a battery cell (d) water
33. 33.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
34. 34.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) white at once (c) reddish (d) bright blue
35. 35.🧺 Which of these is not needed for the turmeric test? (a) water (b) soap solution (c) white paper strips (d) a comb
36. 36.True or false: plain water turns turmeric reddish-brown. (a) False (b) True
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
38. 38.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) your best clothes (d) an old shirt or apron
39. 39.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns red (c) it turns blue (d) it turns black
40. 40.🧺 Which of these is needed for the turmeric test? (a) a dropper or spoon (b) yeast (c) a magnet (d) a comb

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