Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 532 · 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.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) an old shirt or apron (d) your best clothes
2. 2.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) turmeric powder (c) water (d) a battery cell
3. 3.🫧 Which of these is an acid? (a) salt water (b) plain water (c) lemon juice (d) baking soda water
4. 4.True or false: a comb is not needed for the turmeric test. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) vinegar
6. 6.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
7. 7.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a pulley (c) an indicator (d) a prism
8. 8.True or false: turmeric powder is needed for the turmeric test. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) baking soda water (d) detergent water
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) salt water (d) sugar water
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the light we look in (c) the colour we see (d) the liquid we test
13. 13.⚖️ 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 number of drops (d) the liquid we test
14. 14.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a battery cell (c) a dropper or spoon (d) water
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
16. 16.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns blue (c) it turns red (d) it stays yellow
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.True or false: curd is an acid. (a) False (b) True
19. 19.🧺 Which of these is not needed for the turmeric test? (a) water (b) a dropper or spoon (c) white paper strips (d) a mirror
20. 20.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) white at once (c) reddish (d) green
21. 21.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it stays yellow (c) it turns black (d) it turns red
22. 22.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a battery cell (c) a comb (d) white paper strips
23. 23.🫧 Which of these is an acid? (a) vinegar (b) soap solution (c) sugar water (d) salt water
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) soap solution (c) a dropper or spoon (d) water
25. 25.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
27. 27.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) bright blue (c) reddish-brown (d) it stays white
28. 28.🫧 Which of these is neutral? (a) soap solution (b) tamarind water (c) salt water (d) curd
29. 29.True or false: a mirror is not needed for the turmeric test. (a) False (b) True
30. 30.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) soap solution (c) sugar water (d) tamarind water
31. 31.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
32. 32.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is what we measure. (a) True (b) False
34. 34.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) water (c) a balloon (d) a comb
35. 35.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
36. 36.🫧 Which of these is neutral? (a) orange juice (b) lemon juice (c) plain water (d) baking soda water
37. 37.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
38. 38.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) yeast (c) a dropper or spoon (d) soap solution
39. 39.🟡 Why does soap solution change turmeric’s colour? (a) soap is magnetic (b) soap water is a base (c) soap is hot (d) soap is an acid
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we change it (c) we keep it the same

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