Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 792 · 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.True or false: a mirror is not needed for the turmeric test. (a) True (b) False
2. 2.⚖️ 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 colour we see (c) the turmeric paper (d) the liquid we test
3. 3.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it stays yellow (c) it turns blue (d) it turns red
4. 4.True or false: detergent water turns turmeric reddish-brown. (a) False (b) True
5. 5.True or false: a mirror is needed for the turmeric test. (a) True (b) False
6. 6.True or false: turmeric powder is needed for the turmeric test. (a) True (b) False
7. 7.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) sip each liquid (d) use only kitchen items
8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) white paper strips (c) a dropper or spoon (d) water
9. 9.True or false: soap solution is neutral. (a) True (b) False
10. 10.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it turns red (c) it stays yellow (d) it turns black
11. 11.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) an indicator (c) a magnet (d) a pulley
12. 12.True or false: a balloon is needed for the turmeric test. (a) True (b) False
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) water (c) soap solution (d) white paper strips
14. 14.⚖️ 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
15. 15.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) orange juice (d) sugar water
16. 16.True or false: baking soda water is a base. (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 turmeric paper is what we measure. (a) False (b) True
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) lemon juice (c) a magnet (d) white paper strips
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we measure it (c) we change it
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 colour we see (c) the turmeric paper
25. 25.True or false: soap solution turns turmeric reddish-brown. (a) True (b) False
26. 26.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) salt water (c) detergent water (d) sugar water
27. 27.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
28. 28.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) your school uniform (c) a white party dress (d) your best clothes
29. 29.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
30. 30.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) salt water (d) soap solution
31. 31.True or false: tamarind water keeps turmeric yellow. (a) True (b) False
32. 32.True or false: detergent water is a base. (a) True (b) False
33. 33.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
34. 34.⚖️ 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
35. 35.True or false: plain water is neutral. (a) False (b) True
36. 36.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a magnet (c) a comb (d) a dropper or spoon
37. 37.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) vinegar (c) lemon juice (d) soap solution
38. 38.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) tamarind water (d) soap solution
39. 39.🧺 Which of these is needed for the turmeric test? (a) yeast (b) white paper strips (c) a battery cell (d) a balloon
40. 40.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed

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