Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 824 · 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) sniff each bottle hard (b) mix bathroom cleaners (c) sip each liquid (d) use only kitchen items
2. 2.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
4. 4.⚖️ 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
5. 5.True or false: a battery cell is not 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) a dropper or spoon (b) a balloon (c) turmeric powder (d) water
7. 7.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
8. 8.⚖️ 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 change it (c) we measure it
9. 9.True or false: turmeric powder is needed for the turmeric test. (a) True (b) False
10. 10.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns darker red (b) it disappears (c) it turns blue (d) it turns yellow again
11. 11.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the turmeric test? (a) a comb (b) yeast (c) turmeric powder (d) a mirror
13. 13.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) lemon juice (c) plain water (d) baking soda water
14. 14.True or false: a comb is not needed for the turmeric test. (a) True (b) False
15. 15.True or false: plain water is a base. (a) False (b) True
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) water (c) a comb (d) turmeric powder
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
18. 18.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) an old shirt or apron (c) your school uniform (d) your best clothes
19. 19.⚖️ 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
20. 20.🫧 Which of these is an acid? (a) baking soda water (b) lemon juice (c) sugar water (d) salt water
21. 21.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) vinegar (d) salt water
22. 22.⚖️ 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 liquid we test (d) the turmeric paper
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) baking soda water (d) detergent water
25. 25.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
26. 26.True or false: soap solution is an acid. (a) True (b) False
27. 27.🧺 Which of these is not needed for the turmeric test? (a) water (b) lemon juice (c) turmeric powder (d) a magnet
28. 28.🫧 Which of these is a base? (a) vinegar (b) sugar water (c) curd (d) baking soda water
29. 29.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
30. 30.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
31. 31.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) bright blue (c) white at once (d) reddish
32. 32.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) a dropper or spoon (c) water (d) yeast
33. 33.True or false: soap solution keeps turmeric yellow. (a) True (b) False
34. 34.⚖️ 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 turmeric paper
35. 35.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) water (c) a magnet (d) soap solution
36. 36.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
37. 37.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) soap solution (d) baking soda water
38. 38.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) a dropper or spoon (c) white paper strips (d) a comb
39. 39.🧺 Which of these is needed for the turmeric test? (a) soap solution (b) a battery cell (c) a magnet (d) a balloon
40. 40.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) yeast (c) white paper strips (d) lemon juice

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