Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 317 · 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 light we look in”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) reddish-brown (b) it stays white (c) green (d) bright blue
3. 3.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) water (c) a balloon (d) a magnet
4. 4.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
5. 5.True or false: soap solution is a base. (a) False (b) True
6. 6.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) soap solution (d) salt water
7. 7.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
8. 8.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) tamarind water (c) soap solution (d) detergent water
9. 9.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) sniff each bottle hard (d) use only kitchen items
10. 10.🫧 Which of these is a base? (a) detergent water (b) salt water (c) tamarind water (d) vinegar
11. 11.True or false: soap solution is needed for the turmeric test. (a) True (b) False
12. 12.True or false: a comb is not needed for the turmeric test. (a) False (b) True
13. 13.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns darker red (c) it turns yellow again (d) it turns blue
14. 14.True or false: vinegar is an acid. (a) True (b) False
15. 15.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) detergent water (c) soap solution (d) baking soda water
16. 16.True or false: sugar water turns turmeric reddish-brown. (a) False (b) True
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the liquid we test (c) the number of drops (d) the colour we see
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the number of drops (c) the liquid we test
22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the turmeric paper (c) the colour we see
23. 23.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) white paper strips (c) a balloon (d) yeast
25. 25.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) lemon juice (c) a balloon (d) water
26. 26.True or false: a dropper or spoon is needed for the turmeric test. (a) False (b) True
27. 27.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) your school uniform (d) an old shirt or apron
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a battery cell (c) turmeric powder (d) lemon juice
30. 30.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
31. 31.🧺 Do we need a comb for the turmeric test? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a dropper or spoon (c) turmeric powder (d) a mirror
33. 33.True or false: water is needed for the turmeric test. (a) True (b) False
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it stays yellow (c) it turns red (d) it turns blue
36. 36.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the number of drops (b) the liquid we test (c) the turmeric paper (d) the colour we see
38. 38.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) soap solution (c) sugar water (d) vinegar
39. 39.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) baking soda water (d) lemon juice
40. 40.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed

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