Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 974 · 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 rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) use only kitchen items (d) mix bathroom cleaners
2. 2.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) lemon juice (c) a dropper or spoon (d) a comb
3. 3.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) soap solution (c) sugar water (d) salt water
4. 4.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
5. 5.True or false: a dropper or spoon is needed for the turmeric test. (a) False (b) True
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) yeast (d) soap solution
7. 7.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
8. 8.True or false: salt water is neutral. (a) True (b) False
9. 9.🫧 Which of these is neutral? (a) lemon juice (b) plain water (c) vinegar (d) baking soda water
10. 10.True or false: tamarind water keeps turmeric yellow. (a) True (b) False
11. 11.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns blue (c) it turns red (d) it stays yellow
12. 12.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) sugar water
13. 13.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) an old shirt or apron (c) a white party dress (d) your best clothes
14. 14.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
15. 15.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a balloon (c) turmeric powder (d) a magnet
16. 16.⚖️ 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
17. 17.⚖️ 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 liquid we test (c) the turmeric paper (d) the light we look in
18. 18.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a mirror (c) soap solution (d) turmeric powder
19. 19.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) an indicator (c) a magnet (d) a prism
20. 20.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) plain water (d) detergent water
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
22. 22.🟡 Why does soap solution change turmeric’s colour? (a) soap water is a base (b) soap is magnetic (c) soap is an acid (d) soap is hot
23. 23.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
24. 24.True or false: sugar water is a base. (a) True (b) False
25. 25.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) white at once (c) reddish (d) bright blue
26. 26.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) salt water (d) baking soda water
27. 27.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) soap solution (c) turmeric powder (d) a balloon
28. 28.🟡 Which of these turns turmeric paper reddish-brown? (a) soap solution (b) vinegar (c) sugar water (d) lemon juice
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the liquid we test (c) the colour we see
30. 30.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
31. 31.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the number of drops (c) the colour we see (d) the turmeric paper
33. 33.True or false: detergent water turns turmeric reddish-brown. (a) False (b) True
34. 34.True or false: soap solution is needed for the turmeric test. (a) False (b) True
35. 35.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: tamarind water is an acid. (a) False (b) True
38. 38.⚖️ 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
39. 39.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) tamarind water (c) detergent water (d) vinegar
40. 40.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed

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