Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 806 · 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.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
2. 2.True or false: soap solution is needed for the turmeric test. (a) False (b) True
3. 3.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) an old shirt or apron (d) your school uniform
4. 4.🫧 Which of these is neutral? (a) vinegar (b) tamarind water (c) salt water (d) curd
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) green (c) reddish (d) bright blue
7. 7.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
8. 8.🧺 Which of these is needed for the turmeric test? (a) lemon juice (b) a balloon (c) a magnet (d) a battery cell
9. 9.🛟 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
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the turmeric paper (c) the liquid we test
11. 11.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) lemon juice (c) baking soda water (d) tamarind water
12. 12.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) yeast (c) white paper strips (d) turmeric powder
14. 14.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) a comb (c) turmeric powder (d) lemon juice
15. 15.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) bright blue (d) reddish-brown
16. 16.🫧 Which of these is a base? (a) orange juice (b) plain water (c) soap solution (d) tamarind water
17. 17.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a battery cell (c) a dropper or spoon (d) yeast
18. 18.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) white paper strips (c) lemon juice (d) a comb
19. 19.🟡 Why does soap solution change turmeric’s colour? (a) soap is an acid (b) soap is hot (c) soap is magnetic (d) soap water is a base
20. 20.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
21. 21.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
22. 22.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
23. 23.True or false: soap solution turns turmeric reddish-brown. (a) True (b) False
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) turmeric powder (c) a battery cell (d) lemon juice
25. 25.⚖️ 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
26. 26.🫧 Which of these is neutral? (a) plain water (b) tamarind water (c) lemon juice (d) vinegar
27. 27.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns blue (c) it turns green (d) reddish-brown
28. 28.True or false: curd is an acid. (a) False (b) True
29. 29.True or false: lemon juice turns turmeric reddish-brown. (a) True (b) False
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) an indicator (c) a pulley (d) a prism
32. 32.True or false: vinegar is a base. (a) False (b) True
33. 33.⚖️ 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 liquid we test (c) the light we look in (d) the turmeric paper
34. 34.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
35. 35.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) soap solution (c) vinegar (d) lemon juice
36. 36.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) plain water (c) tamarind water (d) soap solution
37. 37.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) lemon juice (d) detergent water
38. 38.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) water (c) a battery cell (d) lemon juice
39. 39.True or false: a dropper or spoon is not needed for the turmeric test. (a) True (b) False
40. 40.True or false: turmeric powder is not needed for the turmeric test. (a) True (b) False

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