Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 183 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s idea — acid and base, indicator colours, chemical change, what seeds and yeast need, transpiration, crystals or filtering. 3. For a fair-test question, find what is changed, kept the same and measured. 4. For a safety question, choose what keeps everyone safe.

1. 1.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) an old shirt or apron (d) your school uniform
2. 2.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
3. 3.🧺 Which of these is not needed for the yeast balloon? (a) a balloon (b) sugar (c) a mirror (d) dry yeast
4. 4.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the amount of cream is kept the same. (a) True (b) False
5. 5.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the cream temperature is the one thing we change. (a) True (b) False
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a battery cell (c) baking soda (d) vinegar
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a mirror (d) a funnel
8. 8.🫧 Which of these is neutral? (a) orange juice (b) tamarind water (c) soap solution (d) salt water
9. 9.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same bowls”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) a clean glass (d) muddy water
11. 11.🔍 Which is the odd one out? (a) water (b) sunlight (c) soil (d) salt
12. 12.True or false: seeds on wet cotton does not sprout. (a) False (b) True
13. 13.⚖️ Fair test — does cold cream turn into butter faster than warm cream? Which of these is what we measure? (a) how hard we shake (b) time to make butter (c) the amount of cream (d) the cream temperature
14. 14.🧺 Which of these is needed for the yeast balloon? (a) a battery cell (b) a comb (c) a magnet (d) dry yeast
15. 15.True or false: a mirror is needed for making butter. (a) False (b) True
16. 16.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) browning lemon ink (b) melting ice (c) rusting iron (d) baking a cake
18. 18.True or false: a battery cell is not needed for the secret lemon message. (a) False (b) True
19. 19.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
20. 20.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a magnet (c) a spoon (d) a shallow dish
21. 21.🛟 Why must the jar lid be screwed on tightly? (a) so it turns yellow (b) so cream does not spill (c) so air gets out (d) so it gets hot
22. 22.🔍 Which is the odd one out? (a) letting the paper dry (b) reading the message (c) writing the message (d) putting the iron away
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
24. 24.🫧 Which of these is a base? (a) baking soda water (b) tamarind water (c) vinegar (d) salt water
25. 25.🍋 Why does the lemon writing turn brown with heat? (a) paper turns lemony (b) the juice scorches first (c) the iron is brown (d) heat adds colour
26. 26.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the same cotton bud”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
28. 28.True or false: a shallow dish is not needed for growing salt crystals. (a) False (b) True
29. 29.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) a magnet (b) a small bowl (c) a few days (d) water
31. 31.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) bigger crystals (c) smaller crystals (d) no crystals
32. 32.⚖️ 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
33. 33.True or false: a small bottle is needed for the yeast balloon. (a) False (b) True
34. 34.⚖️ Fair test — does cold cream turn into butter faster than warm cream? Which of these is the one thing we change? (a) the amount of cream (b) the cream temperature (c) the same jar (d) time to make butter
35. 35.True or false: reading the message is a job a child can do. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) melting butter (b) cooking an egg (c) folding paper (d) freezing water
37. 37.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
38. 38.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) dissolving salt (c) baking a cake (d) folding paper
39. 39.🧺 Do we need turmeric powder for the yeast balloon? (a) needed (b) not needed
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False

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