Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 486 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) baking soda (d) vinegar
2. 2.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a magnet (c) a potted plant (d) a few hours
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
4. 4.True or false: hold the plant in soil is a job of the roots. (a) True (b) False
5. 5.🟡 Which of these turns turmeric paper reddish-brown? (a) soap solution (b) vinegar (c) lemon juice (d) sugar water
6. 6.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a cotton bud (b) a mirror (c) a small bowl (d) lemon juice
7. 7.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a cotton bud (b) white paper (c) yeast (d) lemon juice
8. 8.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a bowl (b) a magnet (c) a timer (d) a jar with a tight lid
9. 9.🌱 Is sugar needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
10. 10.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a jar with a tight lid (b) a timer (c) a balloon (d) fresh cream
11. 11.True or false: a magnet is needed for the yeast balloon. (a) True (b) False
12. 12.True or false: rusting iron is a change that can be undone. (a) True (b) False
13. 13.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) neither of them (c) the cool cloudy day (d) the hot sunny day
14. 14.🧺 Which of these is needed for the yeast balloon? (a) warm water (b) a comb (c) a battery cell (d) turmeric powder
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
16. 16.🫧 Which of these is neutral? (a) curd (b) detergent water (c) salt water (d) vinegar
17. 17.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a potted plant (c) sunlight (d) vinegar
18. 18.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
19. 19.🍋 Which of these steps is a job a child can do? (a) reading the message (b) putting the iron away (c) ironing the paper (d) cutting the lemon
20. 20.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
21. 21.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) sniff each bottle hard (d) mix bathroom cleaners
22. 22.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the amount of cream is kept the same. (a) False (b) True
23. 23.🟡 Which of these keeps turmeric yellow? (a) salt water (b) detergent water (c) soap solution (d) baking soda water
24. 24.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) an old shirt or apron (c) your best clothes (d) your school uniform
25. 25.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
26. 26.True or false: a magnet is not needed for the yeast balloon. (a) False (b) True
27. 27.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the same bottles”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) soap solution (d) baking soda water
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
30. 30.True or false: seeds on wet cotton does not sprout. (a) False (b) True
31. 31.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is kept the same. (a) False (b) True
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a dropper or spoon (c) yeast (d) white paper strips
33. 33.🍞 Which of these is something yeast does not need? (a) time (b) sugar (c) sunlight (d) warm water
34. 34.🫧 Which of these is a base? (a) salt water (b) vinegar (c) baking soda water (d) curd
35. 35.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a rubber band (c) yeast (d) a magnet
36. 36.🍋 Secret message: who does this step — dipping the cotton bud? (a) a child can do it (b) an adult does it
37. 37.⚖️ 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 size of the plant
38. 38.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) soap solution (c) a mirror (d) water
39. 39.🍋 Secret message: who does this step — plugging in the iron? (a) a child can do it (b) an adult does it
40. 40.🧈 Can this change be undone: baking a cake? (a) can be undone (b) cannot be undone

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