Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 634 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) a dropper or spoon (c) turmeric powder (d) white paper strips
2. 2.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
3. 3.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
5. 5.True or false: lemon juice is not needed for the turmeric test. (a) False (b) True
6. 6.True or false: a magnet is needed for the turmeric test. (a) True (b) False
7. 7.True or false: plain water keeps turmeric yellow. (a) False (b) True
8. 8.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) vinegar (c) baking soda water (d) lemon juice
9. 9.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) turmeric powder (c) a dropper or spoon (d) a magnet
11. 11.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
12. 12.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) soap solution (c) lemon juice (d) vinegar
13. 13.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) reddish (c) bright blue (d) green
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
15. 15.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) mix bathroom cleaners (d) use only kitchen items
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the colour we see (c) the number of drops (d) the liquid we test
17. 17.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) your school uniform (d) an old shirt or apron
18. 18.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) white paper strips (c) water (d) a dropper or spoon
19. 19.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
20. 20.True or false: vinegar is an acid. (a) False (b) True
21. 21.🧺 Which of these is needed for the turmeric test? (a) white paper strips (b) yeast (c) a balloon (d) a battery cell
22. 22.True or false: turmeric powder is needed for the turmeric test. (a) True (b) False
23. 23.True or false: a battery cell is needed for the turmeric test. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) baking soda water (d) detergent water
25. 25.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) a prism (c) a magnet (d) an indicator
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the colour we see (c) the number of drops (d) the liquid we test
27. 27.🔍 Which is the odd one out? (a) salt water (b) detergent water (c) lemon juice (d) vinegar
28. 28.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) sugar water (c) detergent water (d) tamarind water
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) white paper strips (c) water (d) a balloon
31. 31.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the colour we see (c) the light we look in
34. 34.True or false: curd is a base. (a) False (b) True
35. 35.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
36. 36.⚖️ 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 measure it (c) we change it
37. 37.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) detergent water (c) baking soda water (d) soap solution
38. 38.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a magnet (c) lemon juice (d) a comb
39. 39.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a balloon (c) yeast (d) water
40. 40.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a magnet (c) soap solution (d) a battery cell

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