Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 88 · 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? Which of these is kept the same? (a) the liquid we test (b) the number of drops (c) the colour we see
2. 2.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
3. 3.True or false: vinegar turns turmeric reddish-brown. (a) False (b) True
4. 4.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns black (c) it turns blue (d) it turns red
5. 5.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) mix bathroom cleaners (d) sniff each bottle hard
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the number of drops (b) the light we look in (c) the liquid we test (d) the turmeric paper
7. 7.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) reddish (c) bright blue (d) white at once
8. 8.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
9. 9.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) lemon juice (c) soap solution (d) a battery cell
11. 11.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
12. 12.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) tamarind water (d) baking soda water
13. 13.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) lemon juice (d) detergent water
14. 14.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) a magnet (c) a prism (d) an indicator
15. 15.True or false: baking soda water is a base. (a) True (b) False
16. 16.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) plain water (d) detergent water
17. 17.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) soap solution (c) lemon juice (d) tamarind water
18. 18.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
19. 19.🔍 Which is the odd one out? (a) vinegar (b) plain water (c) lemon juice (d) soap solution
20. 20.⚖️ 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 liquid we test (d) the turmeric paper
21. 21.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) lemon juice (c) sugar water (d) soap solution
22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) True (b) False
23. 23.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
24. 24.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
25. 25.True or false: a battery cell is not needed for the turmeric test. (a) False (b) True
26. 26.True or false: sugar water is a base. (a) True (b) False
27. 27.⚖️ 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
28. 28.🟡 Which of these keeps turmeric yellow? (a) sugar water (b) baking soda water (c) soap solution (d) detergent water
29. 29.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) a white party dress (c) your best clothes (d) your school uniform
30. 30.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) lemon juice
32. 32.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) orange juice (d) soap solution
33. 33.🧺 Which of these is not needed for the turmeric test? (a) water (b) lemon juice (c) a balloon (d) white paper strips
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the colour we see (c) the light we look in
36. 36.🧺 Which of these is needed for the turmeric test? (a) a comb (b) turmeric powder (c) a battery cell (d) a mirror
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) True (b) False
38. 38.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) yeast (c) a comb (d) soap solution
40. 40.True or false: sugar water keeps turmeric yellow. (a) False (b) True

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