Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 848 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
2. 2.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it makes salt (b) it is much faster (c) it turns pink (d) it takes much longer
3. 3.🧺 Which of these is not needed for the secret lemon message? (a) a cotton bud (b) an adult with an iron (c) white paper (d) a balloon
4. 4.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the same jar”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🍋 Which of these steps is a job a child can do? (a) plugging in the iron (b) ironing the paper (c) letting the paper dry (d) putting the iron away
6. 6.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) lemon juice (d) curd
7. 7.🌱 Why do the seeds on dry cotton not sprout? (a) they have no water (b) they have no salt (c) they are too wet (d) they have no soil
8. 8.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) gently, not too tight (c) with sharp wire (d) as tight as possible
9. 9.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it can block breathing (c) it gets wet (d) it is too big
10. 10.🧺 Do we need a small bowl for sprouting seeds? (a) needed (b) not needed
11. 11.🫧 Which of these is an acid? (a) vinegar (b) baking soda water (c) detergent water (d) sugar water
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a jar with a tight lid (b) a bowl (c) a magnet (d) cold water to rinse
14. 14.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the kind of plant”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🛟 Why must children keep their fingers away from the iron? (a) it is sticky (b) it is magnetic (c) it is cold (d) it can burn skin
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
17. 17.🍞 Does yeast need sugar to make gas? (a) yeast needs it (b) yeast does not need it
18. 18.🍞 Which of these is something yeast does not need? (a) time (b) sunlight (c) warm water (d) sugar
19. 19.🔍 Which is the odd one out? (a) warm water (b) time (c) sugar (d) a magnet
20. 20.🍞 Which of these is something yeast needs? (a) salt (b) vinegar (c) warm water (d) sunlight
21. 21.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) sugar water (d) salt water
22. 22.🔍 Which is the odd one out? (a) sugar (b) salt (c) soil (d) air
23. 23.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.True or false: a battery cell is not needed for growing salt crystals. (a) False (b) True
25. 25.True or false: fresh cream is not needed for making butter. (a) False (b) True
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a magnet (d) a clean glass
27. 27.🍋 Which of these steps is a job a child can do? (a) ironing the paper (b) putting the iron away (c) reading the message (d) plugging in the iron
28. 28.🔮 Predict: you shake skimmed milk (with almost no cream) instead. What happens? (a) more butter forms (b) no butter forms (c) it turns to cheese (d) it turns blue
29. 29.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
30. 30.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) baking soda water (c) plain water (d) tamarind water
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) True (b) False
32. 32.⚖️ Fair test — does cold cream turn into butter faster than warm cream? Which of these is kept the same? (a) the cream temperature (b) the amount of cream (c) time to make butter
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a funnel (d) turmeric powder
34. 34.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns red (c) it turns blue (d) it stays yellow
35. 35.True or false: tea leaves from tea is done by evaporating. (a) False (b) True
36. 36.🛟 The water for the yeast should be ___. (a) ice cold (b) very salty (c) warm, not hot (d) boiling hot
37. 37.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the time we wait”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) take in water from soil (c) carry water upward (d) make seeds
39. 39.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the turmeric test? (a) a mirror (b) soap solution (c) turmeric powder (d) a dropper or spoon

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