Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 643 · 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.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) turmeric powder (c) a comb (d) a battery cell
2. 2.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) your best clothes (d) an old shirt or apron
3. 3.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a comb (c) lemon juice (d) a balloon
4. 4.⚖️ 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
5. 5.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it turns red (c) it turns black (d) it stays yellow
6. 6.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) white paper strips (c) turmeric powder (d) a magnet
7. 7.True or false: a mirror is not needed for the turmeric test. (a) False (b) True
8. 8.True or false: salt water turns turmeric reddish-brown. (a) False (b) True
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🫧 Which of these is an acid? (a) detergent water (b) sugar water (c) orange juice (d) baking soda water
11. 11.🧺 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) soap solution
12. 12.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) use only kitchen items (d) sniff each bottle hard
13. 13.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) a magnet (c) a pulley (d) an indicator
14. 14.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) True (b) False
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) a battery cell (d) water
18. 18.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns green (c) reddish-brown (d) it turns blue
19. 19.True or false: soap solution is needed for the turmeric test. (a) True (b) False
20. 20.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
21. 21.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a mirror (c) water (d) a magnet
22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) True (b) False
23. 23.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) lemon juice (c) baking soda water (d) soap solution
24. 24.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
26. 26.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
27. 27.True or false: water is not needed for the turmeric test. (a) False (b) True
28. 28.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) yeast (c) a dropper or spoon (d) a magnet
29. 29.True or false: vinegar keeps turmeric yellow. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) salt water (b) vinegar (c) baking soda water (d) tamarind water
31. 31.True or false: orange juice is an acid. (a) True (b) False
32. 32.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) soap solution (d) tamarind water
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 a base? (a) sugar water (b) soap solution (c) tamarind water (d) orange juice
35. 35.🟡 Why does soap solution change turmeric’s colour? (a) soap water is a base (b) soap is magnetic (c) soap is hot (d) soap is an acid
36. 36.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
37. 37.True or false: sugar water keeps turmeric yellow. (a) False (b) True
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) True (b) False
39. 39.⚖️ 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 keep it the same (c) we change it
40. 40.⚖️ 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

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