Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 120 · 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 number of drops is kept the same. (a) True (b) False
2. 2.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the turmeric paper (c) the liquid we test (d) the colour we see
4. 4.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) sugar water
5. 5.🟡 Why does soap solution change turmeric’s colour? (a) soap is an acid (b) soap is magnetic (c) soap water is a base (d) soap is hot
6. 6.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) your school uniform (d) an old shirt or apron
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a battery cell (c) white paper strips (d) turmeric powder
8. 8.⚖️ 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 light we look in
9. 9.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it stays yellow (c) it turns blue (d) it turns red
10. 10.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
11. 11.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
12. 12.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) bright blue (c) green (d) reddish-brown
13. 13.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a balloon (c) a dropper or spoon (d) yeast
14. 14.True or false: lemon juice is an acid. (a) True (b) False
15. 15.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
16. 16.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) soap solution (d) salt water
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) detergent water (b) plain water (c) vinegar (d) lemon juice
21. 21.True or false: soap solution keeps turmeric yellow. (a) False (b) True
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a balloon (c) lemon juice (d) a dropper or spoon
23. 23.True or false: lemon juice is a base. (a) False (b) True
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) False (b) True
25. 25.True or false: salt water keeps turmeric yellow. (a) True (b) False
26. 26.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns red (c) it turns blue (d) it stays yellow
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) detergent water (d) plain water
29. 29.True or false: a balloon is needed for the turmeric test. (a) False (b) True
30. 30.⚖️ 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 colour we see (c) the turmeric paper (d) the liquid we test
31. 31.🫧 Which of these is an acid? (a) detergent water (b) orange juice (c) plain water (d) soap solution
32. 32.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
33. 33.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it turns blue (c) it stays yellow (d) it turns green
34. 34.True or false: soap solution is neutral. (a) True (b) False
35. 35.True or false: salt water turns turmeric reddish-brown. (a) False (b) True
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the colour we see (c) the liquid we test
37. 37.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) use only kitchen items (d) mix bathroom cleaners
39. 39.🫧 Which of these is an acid? (a) salt water (b) detergent water (c) soap solution (d) lemon juice
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False

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