Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 299 · 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) use only kitchen items (b) sniff each bottle hard (c) mix bathroom cleaners (d) sip each liquid
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🫧 Which of these is a base? (a) salt water (b) tamarind water (c) orange juice (d) detergent water
4. 4.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) it stays white (c) green (d) reddish-brown
6. 6.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
7. 7.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) a white party dress (c) your school uniform (d) your best clothes
8. 8.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns darker red (b) it disappears (c) it turns yellow again (d) it turns blue
9. 9.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) lemon juice (c) detergent water (d) tamarind water
10. 10.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) tamarind water
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
12. 12.⚖️ 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
13. 13.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) True (b) False
15. 15.⚖️ 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
16. 16.🫧 Which of these is an acid? (a) plain water (b) orange juice (c) salt water (d) soap solution
17. 17.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns blue (c) it turns black (d) it turns red
18. 18.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the number of drops (c) the light we look in (d) the colour we see
21. 21.True or false: plain water is a base. (a) True (b) False
22. 22.🫧 Which of these is a base? (a) salt water (b) baking soda water (c) plain water (d) orange juice
23. 23.🔍 Which is the odd one out? (a) tamarind water (b) detergent water (c) sugar water (d) plain water
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) yeast (c) lemon juice (d) water
25. 25.🧺 Which of these is needed for the turmeric test? (a) a comb (b) water (c) yeast (d) a battery cell
26. 26.🟡 Turmeric paper meets sugar 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.True or false: yeast is not needed for the turmeric test. (a) False (b) True
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a mirror (c) a dropper or spoon (d) turmeric powder
30. 30.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) sugar water (c) vinegar (d) lemon juice
31. 31.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) turmeric powder (c) a comb (d) a battery cell
32. 32.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) white paper strips (c) a balloon (d) a magnet
33. 33.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
34. 34.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
35. 35.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) an indicator (c) a pulley (d) a magnet
36. 36.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) detergent water (d) lemon juice
37. 37.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) plain water
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the colour we see (b) the number of drops (c) the liquid we test (d) the light we look in
40. 40.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) water (c) a magnet (d) a dropper or spoon

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