Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 310 · 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.True or false: a balloon is needed for the turmeric test. (a) True (b) False
2. 2.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) sugar water (d) detergent water
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False
4. 4.True or false: sugar water turns turmeric reddish-brown. (a) False (b) True
5. 5.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) reddish-brown (c) it turns blue (d) it stays yellow
6. 6.⚖️ 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
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
8. 8.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
9. 9.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) reddish-brown (c) it stays white (d) green
10. 10.🧺 Which of these is needed for the turmeric test? (a) soap solution (b) a comb (c) a balloon (d) a battery cell
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a dropper or spoon (c) lemon juice (d) yeast
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the colour we see (c) the turmeric paper (d) the light we look in
14. 14.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a dropper or spoon (c) yeast (d) a comb
15. 15.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) water (c) a balloon (d) soap solution
16. 16.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
17. 17.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
18. 18.⚖️ 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
19. 19.🛟 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
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) soap solution (d) detergent water
22. 22.True or false: plain water keeps turmeric yellow. (a) False (b) True
23. 23.True or false: baking soda water is a base. (a) True (b) False
24. 24.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) vinegar
25. 25.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) lemon juice (c) vinegar (d) soap solution
26. 26.🧺 Which of these is needed for the turmeric test? (a) yeast (b) water (c) a mirror (d) a magnet
27. 27.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
28. 28.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
29. 29.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
30. 30.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
31. 31.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) reddish (c) white at once (d) bright blue
32. 32.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) tamarind water (d) baking soda water
33. 33.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
34. 34.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a pulley (c) a prism (d) a magnet
36. 36.⚖️ 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 number of drops (c) the colour we see (d) the liquid we test
37. 37.🫧 Which of these is neutral? (a) curd (b) lemon juice (c) orange juice (d) salt water
38. 38.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
39. 39.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) turmeric powder (c) soap solution (d) a balloon
40. 40.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it turns blue (c) it turns black (d) it stays yellow

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