Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 75 · 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 liquid we test is what we measure. (a) True (b) False
2. 2.True or false: vinegar keeps turmeric yellow. (a) True (b) False
3. 3.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) reddish-brown (c) it stays yellow (d) it turns green
4. 4.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) tamarind water (c) baking soda water (d) plain water
5. 5.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) lemon juice
6. 6.True or false: salt water is neutral. (a) False (b) True
7. 7.True or false: turmeric powder is needed for the turmeric test. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
10. 10.⚖️ 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 measure it (c) we change it
11. 11.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) soap solution (c) sugar water (d) lemon juice
12. 12.True or false: lemon juice turns turmeric reddish-brown. (a) True (b) False
13. 13.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a balloon (c) turmeric powder (d) lemon juice
14. 14.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) turmeric powder (c) a battery cell (d) lemon juice
15. 15.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) an indicator (c) a magnet (d) a prism
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) white paper strips (c) turmeric powder (d) a magnet
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🫧 Which of these is an acid? (a) orange juice (b) detergent water (c) baking soda water (d) plain water
19. 19.True or false: a battery cell is needed for the turmeric test. (a) True (b) False
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) soap solution (b) salt water (c) lemon juice (d) tamarind water
21. 21.🫧 Which of these is a base? (a) salt water (b) tamarind water (c) plain water (d) soap solution
22. 22.True or false: soap solution turns turmeric reddish-brown. (a) True (b) False
23. 23.True or false: detergent water is an acid. (a) True (b) False
24. 24.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it turns red (c) it stays yellow (d) it turns black
25. 25.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) yeast (c) a dropper or spoon (d) soap solution
28. 28.🛟 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
29. 29.🫧 Which of these is an acid? (a) salt water (b) plain water (c) soap solution (d) tamarind water
30. 30.True or false: vinegar is an acid. (a) False (b) True
31. 31.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
32. 32.⚖️ 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
33. 33.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) soap solution (c) baking soda water (d) detergent water
34. 34.True or false: a balloon is needed for the turmeric test. (a) True (b) False
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) tamarind water (d) soap solution
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) True (b) False
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the light we look in (b) the colour we see (c) the liquid we test (d) the turmeric paper
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the colour we see (c) the turmeric paper (d) the light we look in
40. 40.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown

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