Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 954 · 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) a balloon (b) lemon juice (c) soap solution (d) a dropper or spoon
2. 2.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) lemon juice (d) detergent water
3. 3.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) reddish-brown (c) it stays white (d) green
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the liquid we test (c) the number of drops (d) the turmeric paper
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a dropper or spoon (c) yeast (d) lemon juice
6. 6.⚖️ 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
7. 7.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it stays yellow (c) it turns green (d) it turns blue
8. 8.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
9. 9.True or false: salt water turns turmeric reddish-brown. (a) False (b) True
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) lemon juice (d) a magnet
11. 11.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) an indicator (c) a prism (d) a pulley
12. 12.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
15. 15.🟡 Which of these keeps turmeric yellow? (a) salt water (b) soap solution (c) detergent water (d) baking soda water
16. 16.⚖️ 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
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.True or false: yeast is not needed for the turmeric test. (a) False (b) True
19. 19.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the number of drops (c) the colour we see (d) the liquid we test
21. 21.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sip each liquid (c) sniff each bottle hard (d) mix bathroom cleaners
22. 22.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
23. 23.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) plain water (c) baking soda water (d) detergent water
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the number of drops (c) the colour we see
25. 25.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
26. 26.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
27. 27.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) plain water (d) sugar water
30. 30.True or false: soap solution keeps turmeric yellow. (a) False (b) True
31. 31.True or false: vinegar is neutral. (a) False (b) True
32. 32.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a comb (c) turmeric powder (d) a dropper or spoon
34. 34.🫧 Which of these is neutral? (a) detergent water (b) baking soda water (c) orange juice (d) plain water
35. 35.🔮 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
36. 36.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) turmeric powder (c) a mirror (d) water
37. 37.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
38. 38.True or false: curd is a base. (a) False (b) True
39. 39.⚖️ 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
40. 40.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow

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