Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 889 · 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.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
2. 2.True or false: turmeric powder is not needed for sprouting seeds. (a) False (b) True
3. 3.🌱 Which of these does not sprout? (a) seeds on wet cotton (b) boiled seeds (c) wet seeds in the dark (d) wet seeds by a window
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: white paper strips is not needed for the turmeric test. (a) False (b) True
6. 6.🪴 Which part of a plant does this job: carry water upward? (a) stem (b) flower (c) roots (d) leaves
7. 7.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? True or false: the same cotton bud is what we measure. (a) True (b) False
8. 8.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns darker red (c) it turns blue (d) it turns yellow again
9. 9.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
11. 11.True or false: rusting iron is a change that cannot be undone. (a) False (b) True
12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a comb (c) a dropper or spoon (d) water
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a funnel or spoon (d) sugar
14. 14.True or false: writing the message is a job a child can do. (a) False (b) True
15. 15.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
16. 16.🧺 Do we need fresh cream for making butter? (a) needed (b) not needed
17. 17.🔮 Can the brown writing go back to being invisible? (a) no, it stays brown (b) yes, if shaken (c) yes, if cooled (d) yes, in the dark
18. 18.True or false: sugar water is neutral. (a) True (b) False
19. 19.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a mirror (d) a balloon
20. 20.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same place”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a mirror (d) a magnet
22. 22.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
23. 23.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) warm water (b) a balloon (c) turmeric powder (d) sugar
24. 24.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) salt water (d) soap solution
25. 25.🌱 Will these sprout: seeds on wet cotton? (a) does not sprout (b) sprouts
26. 26.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to butter (c) sugar crystals form (d) it turns to oil
27. 27.🧂 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) cooking oil (d) baking soda
28. 28.🔍 Which is the odd one out? (a) dipping the cotton bud (b) writing the message (c) letting the paper dry (d) ironing the paper
29. 29.True or false: tea leaves from tea is done by sieving. (a) True (b) False
30. 30.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the cream temperature”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it takes much longer (b) it turns pink (c) it is much faster (d) it makes salt
32. 32.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it turns green (c) it stays yellow (d) it turns blue
33. 33.🔍 Which is the odd one out? (a) time (b) sugar (c) sunlight (d) warm water
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) turmeric powder (d) muddy water
35. 35.🫧 Which of these is a base? (a) sugar water (b) tamarind water (c) detergent water (d) lemon juice
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
38. 38.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sniff each bottle hard (c) sip each liquid (d) mix bathroom cleaners
39. 39.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it stays yellow (c) it turns red (d) it turns black
40. 40.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top

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