Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 859 · 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.🫧 Which of these is neutral? (a) tamarind water (b) detergent water (c) lemon juice (d) salt water
2. 2.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) tamarind water (d) detergent water
4. 4.🧺 Do we need a bowl for making butter? (a) not needed (b) needed
5. 5.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) a white party dress (d) an old shirt or apron
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) sugar (d) vinegar
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a tray for spills (c) a mirror (d) a battery cell
8. 8.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same place”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
10. 10.True or false: a magnet is not needed for the turmeric test. (a) True (b) False
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) a funnel (d) a clean glass
12. 12.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) digestion (c) germination (d) reflection
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) True (b) False
14. 14.⚖️ Fair test — do seeds need water to sprout? What do we do with “the kind of seeds”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
16. 16.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a magnet (c) turmeric powder (d) a comb
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
18. 18.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a battery cell (b) a cotton bud (c) lemon juice (d) an adult with an iron
19. 19.🍞 Does yeast need time to make gas? (a) yeast does not need it (b) yeast needs it
20. 20.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.🧺 Do we need a magnet for growing salt crystals? (a) not needed (b) needed
22. 22.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) turmeric powder (c) a clear plastic bag (d) a potted plant
24. 24.🫗 Which of these is done by sieving? (a) mud from water (b) husk from rice grain (c) gravel from fine sand (d) tea leaves from tea
25. 25.True or false: folding paper is a change that can be undone. (a) False (b) True
26. 26.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) baking soda water (c) vinegar (d) sugar water
27. 27.True or false: a rubber band is needed for the leafy bag test. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) letting the paper dry (b) dipping the cotton bud (c) writing the message (d) plugging in the iron
29. 29.🧺 Which of these is not needed for the turmeric test? (a) a comb (b) turmeric powder (c) a dropper or spoon (d) white paper strips
30. 30.🌱 Is water needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
31. 31.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) False (b) True
33. 33.🫧 Which of these is neutral? (a) vinegar (b) soap solution (c) tamarind water (d) sugar water
34. 34.True or false: lemon juice keeps turmeric yellow. (a) True (b) False
35. 35.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
36. 36.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) green (c) reddish (d) bright blue
37. 37.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
38. 38.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) lots of fizzy bubbles (d) it glows in the dark
39. 39.🟡 Which of these keeps turmeric yellow? (a) vinegar (b) detergent water (c) baking soda water (d) soap solution
40. 40.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) the same kind of bag (b) the kind of plant (c) amount of water drops (d) the size of the plant

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