Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 127 · 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? True or false: the turmeric paper is what we measure. (a) True (b) False
2. 2.🛟 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
3. 3.🛟 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
4. 4.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the light we look in (b) the colour we see (c) the liquid we test
6. 6.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a dropper or spoon (c) a magnet (d) a mirror
7. 7.⚖️ 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 turmeric paper
8. 8.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a magnet (c) turmeric powder (d) white paper strips
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the number of drops (c) the colour we see (d) the turmeric paper
11. 11.True or false: a comb is needed for the turmeric test. (a) False (b) True
12. 12.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) turmeric powder (c) a balloon (d) a battery cell
13. 13.🧺 Which of these is not needed for the turmeric test? (a) a balloon (b) soap solution (c) a dropper or spoon (d) lemon juice
14. 14.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) tamarind water (c) plain water (d) salt water
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
16. 16.🫧 Which of these is neutral? (a) salt water (b) orange juice (c) vinegar (d) tamarind water
17. 17.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) detergent water (d) soap solution
18. 18.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a comb (c) lemon juice (d) water
21. 21.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) plain water
22. 22.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
23. 23.🟡 Which of these turns turmeric paper reddish-brown? (a) soap solution (b) sugar water (c) lemon juice (d) vinegar
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) turmeric powder (c) soap solution (d) a balloon
25. 25.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.🧺 Do we need a mirror for the turmeric test? (a) not needed (b) needed
27. 27.True or false: salt water turns turmeric reddish-brown. (a) False (b) True
28. 28.True or false: plain water turns turmeric reddish-brown. (a) False (b) True
29. 29.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) salt water (c) detergent water (d) baking soda water
30. 30.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the liquid we test (c) the turmeric paper
34. 34.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
35. 35.True or false: baking soda water is neutral. (a) True (b) False
36. 36.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) reddish-brown (d) it turns green
37. 37.🧺 Which of these is needed for the turmeric test? (a) lemon juice (b) yeast (c) a magnet (d) a comb
38. 38.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
39. 39.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
40. 40.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow

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