Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 593 · 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.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is kept the same? (a) sun or shade (b) amount of water drops (c) the time we wait
2. 2.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) roots (c) flower (d) leaves
3. 3.🔮 Predict: you stop shaking after only one minute. What do you have? (a) cheese (b) ghee (c) still runny cream (d) butter lumps
4. 4.🧺 Which of these is not needed for making butter? (a) a battery cell (b) a timer (c) cold water to rinse (d) a bowl
5. 5.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) roots (c) leaves (d) stem
6. 6.🔍 What do you see after shaking cream in a jar for a long time? (a) bubbles of gas (b) sugar crystals (c) clear water only (d) lumps of butter
7. 7.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
8. 8.🔍 Which is the odd one out? (a) plain water (b) salt water (c) detergent water (d) sugar water
9. 9.True or false: sugar is something yeast does not need. (a) True (b) False
10. 10.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it wilts and droops (c) it flowers more (d) it turns blue
11. 11.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
12. 12.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: a jar with a tight lid is needed for making butter. (a) False (b) True
14. 14.True or false: a battery cell is not needed for making butter. (a) False (b) True
15. 15.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a battery cell (b) a small bowl (c) white paper (d) lemon juice
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a balloon (d) a clean glass
18. 18.🧺 Which of these is not needed for the yeast balloon? (a) a magnet (b) sugar (c) a balloon (d) warm water
19. 19.🧺 Do we need water for sprouting seeds? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) writing the message (b) cutting the lemon (c) putting the iron away (d) plugging in the iron
21. 21.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) yeast (c) a spoon (d) a piece of string
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) an empty bottle (d) a tray for spills
23. 23.🧂 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) food colour (d) sugar
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a battery cell (c) muddy water (d) cotton or cloth
25. 25.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
26. 26.🧈 Which of these is a change that can be undone? (a) baking a cake (b) rusting iron (c) browning lemon ink (d) melting butter
27. 27.🔍 Which is the odd one out? (a) dissolving salt (b) baking a cake (c) milk turning to curd (d) cooking an egg
28. 28.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a clear plastic bag (c) a magnet (d) a potted plant
29. 29.🔍 Which is the odd one out? (a) cooking an egg (b) baking a cake (c) freezing water (d) milk turning to curd
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) a balloon (d) a comb
31. 31.True or false: seeds on dry cotton does not sprout. (a) False (b) True
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
34. 34.🔍 Which is the odd one out? (a) baking a cake (b) melting ice (c) folding paper (d) freezing water
35. 35.🫧 Which of these is an acid? (a) plain water (b) soap solution (c) detergent water (d) lemon juice
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same muddy water
37. 37.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) water (d) soap solution
38. 38.🛟 After the yeast experiment, what should you do with the mixture? (a) keep it for a month (b) throw it at a wall (c) pour it down the sink (d) put it in your mouth
39. 39.🧺 Do we need a few days for sprouting seeds? (a) needed (b) not needed
40. 40.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed

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