Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 467 · 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? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
3. 3.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
4. 4.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sip each liquid (c) mix bathroom cleaners (d) sniff each bottle hard
5. 5.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it stays yellow (c) it turns blue (d) it turns green
6. 6.🫧 Which of these is neutral? (a) vinegar (b) soap solution (c) sugar water (d) detergent water
7. 7.True or false: soap solution is an acid. (a) False (b) True
8. 8.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) detergent water (c) baking soda water (d) soap solution
9. 9.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
10. 10.🫧 Which of these is neutral? (a) plain water (b) detergent water (c) orange juice (d) soap solution
11. 11.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) lemon juice (c) soap solution (d) vinegar
12. 12.🫧 Which of these is an acid? (a) salt water (b) lemon juice (c) baking soda water (d) detergent water
13. 13.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) bright blue (c) reddish (d) white at once
14. 14.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) your best clothes (d) an old shirt or apron
15. 15.True or false: soap solution is a base. (a) False (b) True
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) lemon juice (c) a balloon (d) soap solution
17. 17.True or false: a dropper or spoon is needed for the turmeric test. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) baking soda water (b) salt water (c) vinegar (d) sugar water
19. 19.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
20. 20.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
21. 21.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) salt water (c) soap solution (d) sugar water
22. 22.True or false: sugar water is an acid. (a) True (b) False
23. 23.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
24. 24.True or false: baking soda water is neutral. (a) False (b) True
25. 25.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a battery cell (c) a mirror (d) a dropper or spoon
26. 26.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) plain water
29. 29.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns blue (c) it turns red (d) it stays yellow
30. 30.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) tamarind water (d) baking soda water
31. 31.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) bright blue (d) reddish-brown
32. 32.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
33. 33.True or false: lemon juice is an acid. (a) False (b) True
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) False (b) True
35. 35.True or false: a balloon is needed for the turmeric test. (a) False (b) True
36. 36.True or false: a battery cell is not needed for the turmeric test. (a) False (b) True
37. 37.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) soap solution (d) sugar water
40. 40.🧺 Do we need water for the turmeric test? (a) not needed (b) needed

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