Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 799 · 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) use only kitchen items (c) mix bathroom cleaners (d) sniff each bottle hard
2. 2.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a battery cell (b) a dropper or spoon (c) water (d) turmeric powder
3. 3.True or false: tamarind water is neutral. (a) True (b) False
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a magnet (c) water (d) lemon juice
5. 5.True or false: salt water is a base. (a) True (b) False
6. 6.True or false: vinegar turns turmeric reddish-brown. (a) True (b) False
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) water (c) soap solution (d) lemon juice
8. 8.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) salt water (d) sugar water
9. 9.🛟 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
10. 10.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) water (c) yeast (d) lemon juice
11. 11.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) vinegar
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) salt water
14. 14.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
15. 15.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) a magnet (c) an indicator (d) a pulley
16. 16.True or false: salt water keeps turmeric yellow. (a) True (b) False
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) soap solution (c) baking soda water (d) detergent water
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) True (b) False
20. 20.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns blue (b) it turns darker red (c) it turns yellow again (d) it disappears
21. 21.🧺 Which of these is needed for the turmeric test? (a) lemon juice (b) a magnet (c) a mirror (d) a comb
22. 22.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) False (b) True
24. 24.True or false: a dropper or spoon is not needed for the turmeric test. (a) True (b) False
25. 25.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
26. 26.🫧 Which of these is an acid? (a) baking soda water (b) curd (c) soap solution (d) detergent water
27. 27.⚖️ 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 number of drops
28. 28.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) a mirror (d) water
29. 29.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) baking soda water (d) soap solution
30. 30.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a comb (c) a mirror (d) white paper strips
31. 31.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) water (d) a balloon
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the turmeric paper (b) the colour we see (c) the light we look in (d) the number of drops
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a dropper or spoon (c) yeast (d) water
34. 34.True or false: a magnet is needed for the turmeric test. (a) False (b) True
35. 35.🫧 Which of these is an acid? (a) soap solution (b) baking soda water (c) plain water (d) tamarind water
36. 36.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
37. 37.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) detergent water (d) vinegar
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) vinegar (c) sugar water (d) detergent water

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