Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 622 · 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.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) it stays white (c) green (d) reddish-brown
2. 2.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) True (b) False
4. 4.True or false: yeast is not needed for the turmeric test. (a) False (b) True
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
6. 6.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
7. 7.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it stays yellow (c) it turns red (d) it turns blue
8. 8.True or false: plain water is a base. (a) False (b) True
9. 9.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
11. 11.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
12. 12.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) a white party dress (d) an old shirt or apron
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) False (b) True
14. 14.True or false: curd is a base. (a) True (b) False
15. 15.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
16. 16.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
17. 17.True or false: tamarind water is an acid. (a) True (b) False
18. 18.🧺 Do we need a comb for the turmeric test? (a) not needed (b) needed
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) tamarind water (c) vinegar (d) soap solution
21. 21.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) it turns green (d) reddish-brown
22. 22.⚖️ 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 light we look in
23. 23.🍋 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
24. 24.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the liquid we test (c) the colour we see (d) the number of drops
28. 28.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) baking soda water (d) detergent water
30. 30.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) a dropper or spoon (d) a mirror
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) sniff each bottle hard (d) mix bathroom cleaners
33. 33.🫧 Which of these is an acid? (a) vinegar (b) soap solution (c) detergent water (d) baking soda water
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the liquid we test (c) the light we look in (d) the turmeric paper
35. 35.True or false: sugar water is a base. (a) False (b) True
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) True (b) False
37. 37.True or false: salt water is neutral. (a) True (b) False
38. 38.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a comb (c) a dropper or spoon (d) lemon juice
39. 39.True or false: baking soda water is neutral. (a) True (b) False
40. 40.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids