Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 417 · 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 meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
2. 2.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) a mirror (c) white paper strips (d) a dropper or spoon
3. 3.🛟 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
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the number of drops (c) the colour we see (d) the liquid we test
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the number of drops (b) the liquid we test (c) the colour we see
6. 6.True or false: lemon juice keeps turmeric yellow. (a) False (b) True
7. 7.🟡 Which of these keeps turmeric yellow? (a) plain water (b) baking soda water (c) soap solution (d) detergent water
8. 8.⚖️ 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 liquid we test (d) the turmeric paper
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) turmeric powder (c) yeast (d) a dropper or spoon
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
11. 11.🫧 Which of these is neutral? (a) soap solution (b) salt water (c) orange juice (d) lemon juice
12. 12.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) plain water (d) detergent water
13. 13.True or false: sugar water keeps turmeric yellow. (a) False (b) True
14. 14.🫧 Which of these is an acid? (a) detergent water (b) sugar water (c) curd (d) plain water
15. 15.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a battery cell (c) lemon juice (d) turmeric powder
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) white paper strips (c) lemon juice (d) turmeric powder
17. 17.True or false: plain water is neutral. (a) False (b) True
18. 18.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns blue (c) reddish-brown (d) it turns green
19. 19.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
20. 20.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
21. 21.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) an old shirt or apron (c) a white party dress (d) your best clothes
22. 22.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) vinegar
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) sugar water (d) soap solution
25. 25.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
26. 26.🫧 Which of these is an acid? (a) baking soda water (b) lemon juice (c) detergent water (d) sugar water
27. 27.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) water (c) a dropper or spoon (d) a magnet
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) True (b) False
30. 30.True or false: detergent water turns turmeric reddish-brown. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) tamarind water (d) vinegar
32. 32.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.True or false: lemon juice is not needed for the turmeric test. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) sugar water (d) salt water
37. 37.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) lemon juice (c) a mirror (d) a balloon
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.True or false: yeast is needed for the turmeric test. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) lemon juice (b) detergent water (c) soap solution (d) baking soda water

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