Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 636 · 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 stains clothes. What should you wear? (a) your school uniform (b) your best clothes (c) a white party dress (d) an old shirt or apron
2. 2.🟡 Turmeric paper meets plain water. What happens? (a) stays yellow (b) turns reddish-brown
3. 3.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) lemon juice (c) a magnet (d) white paper strips
5. 5.True or false: yeast is not needed for the turmeric test. (a) False (b) True
6. 6.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns green (c) reddish-brown (d) it turns blue
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the liquid we test (b) the number of drops (c) the turmeric paper (d) the colour we see
8. 8.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a battery cell (c) white paper strips (d) a mirror
9. 9.⚖️ 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 change it (c) we measure it
10. 10.🧺 Which of these is not needed for the turmeric test? (a) a balloon (b) white paper strips (c) a dropper or spoon (d) soap solution
11. 11.True or false: curd is neutral. (a) True (b) False
12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) turmeric powder (c) soap solution (d) white paper strips
13. 13.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it turns black (c) it turns blue (d) it stays yellow
14. 14.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) bright blue (c) white at once (d) reddish
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
19. 19.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) soap solution (c) lemon juice (d) sugar water
20. 20.🟡 Why does soap solution change turmeric’s colour? (a) soap is magnetic (b) soap water is a base (c) soap is an acid (d) soap is hot
21. 21.True or false: sugar water turns turmeric reddish-brown. (a) True (b) False
22. 22.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
23. 23.⚖️ 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 change it (c) we measure it
24. 24.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) salt water (c) soap solution (d) sugar water
25. 25.⚖️ 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 light we look in (d) the turmeric paper
26. 26.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
27. 27.🧺 Which of these is needed for the turmeric test? (a) a dropper or spoon (b) a comb (c) a mirror (d) a balloon
28. 28.🫧 Which of these is neutral? (a) soap solution (b) plain water (c) vinegar (d) curd
29. 29.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) mix bathroom cleaners (c) sip each liquid (d) sniff each bottle hard
30. 30.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
31. 31.🧺 Which of these is needed for the turmeric test? (a) yeast (b) soap solution (c) a magnet (d) a balloon
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) turmeric powder (d) a comb
33. 33.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
34. 34.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns yellow again (c) it turns darker red (d) it turns blue
35. 35.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) sugar water (d) plain water
36. 36.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) salt water (c) soap solution (d) baking soda water
37. 37.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
38. 38.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) turmeric powder (d) a battery cell
39. 39.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) water (c) white paper strips (d) a battery cell
40. 40.True or false: baking soda water is neutral. (a) True (b) False

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