Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 666 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a dropper or spoon (c) turmeric powder (d) a balloon
2. 2.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) False (b) True
4. 4.⚖️ 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 light we look in (d) the turmeric paper
5. 5.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) vinegar (c) plain water (d) soap solution
6. 6.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
7. 7.True or false: vinegar turns turmeric reddish-brown. (a) True (b) False
8. 8.🫧 Which of these is a base? (a) soap solution (b) orange juice (c) vinegar (d) curd
9. 9.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns yellow again (b) it turns blue (c) it turns darker red (d) it disappears
10. 10.True or false: yeast is not needed for the turmeric test. (a) True (b) False
11. 11.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) sip each liquid (d) mix bathroom cleaners
12. 12.True or false: baking soda water keeps turmeric yellow. (a) False (b) True
13. 13.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) vinegar (d) sugar water
15. 15.True or false: turmeric powder is needed for the turmeric test. (a) True (b) False
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it turns black (c) it turns red (d) it stays yellow
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
19. 19.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
20. 20.⚖️ 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 liquid we test (c) the turmeric paper (d) the number of drops
21. 21.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a balloon (c) water (d) a mirror
22. 22.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) soap solution (c) a magnet (d) water
23. 23.True or false: a dropper or spoon is not needed for the turmeric test. (a) True (b) False
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
26. 26.True or false: lemon juice is needed for the turmeric test. (a) True (b) False
27. 27.True or false: lemon juice is neutral. (a) False (b) True
28. 28.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) bright blue (c) green (d) reddish-brown
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.True or false: a comb is not needed for the turmeric test. (a) False (b) True
31. 31.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
32. 32.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a mirror (c) water (d) turmeric powder
34. 34.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) plain water (d) lemon juice
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) True (b) False
37. 37.🧺 Which of these is needed for the turmeric test? (a) yeast (b) soap solution (c) a battery cell (d) a magnet
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the colour we see (c) the light we look in
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) False (b) True
40. 40.True or false: detergent water keeps turmeric yellow. (a) False (b) True

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