Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 855 · 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.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
2. 2.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a prism (c) a magnet (d) a pulley
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the number of drops (c) the colour we see (d) the liquid we test
4. 4.⚖️ 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
5. 5.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) soap solution (d) baking soda water
6. 6.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
7. 7.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns blue (c) it turns red (d) it turns black
8. 8.⚖️ 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
9. 9.⚖️ 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
10. 10.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
11. 11.🫧 Which of these is an acid? (a) plain water (b) lemon juice (c) baking soda water (d) soap solution
12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) white paper strips (c) turmeric powder (d) lemon juice
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) lemon juice (d) baking soda water
15. 15.True or false: orange juice is an acid. (a) True (b) False
16. 16.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the number of drops (c) the liquid we test
18. 18.True or false: sugar water keeps turmeric yellow. (a) False (b) True
19. 19.🫧 Which of these is neutral? (a) baking soda water (b) vinegar (c) salt water (d) detergent water
20. 20.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) salt water (d) plain water
21. 21.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
22. 22.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) an old shirt or apron (d) your best clothes
23. 23.🫧 Which of these is a base? (a) soap solution (b) orange juice (c) salt water (d) lemon juice
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) soap solution (c) white paper strips (d) turmeric powder
25. 25.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) sniff each bottle hard (d) use only kitchen items
26. 26.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
29. 29.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) baking soda water (d) plain water
31. 31.🧺 Which of these is not needed for the turmeric test? (a) a battery cell (b) white paper strips (c) turmeric powder (d) soap solution
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
33. 33.🫧 Which of these is a base? (a) orange juice (b) salt water (c) detergent water (d) plain water
34. 34.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
35. 35.🫧 Which of these is neutral? (a) plain water (b) orange juice (c) baking soda water (d) vinegar
36. 36.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) yeast (c) white paper strips (d) a dropper or spoon
37. 37.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) lemon juice (d) detergent water
38. 38.True or false: soap solution is needed for the turmeric test. (a) True (b) False
39. 39.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) soap solution (c) vinegar (d) lemon juice
40. 40.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a comb (c) turmeric powder (d) white paper strips

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