Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 988 · 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 cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the amount poured (c) how clear the water is (d) the same funnel
2. 2.🧺 Do we need fresh cream for making butter? (a) needed (b) not needed
3. 3.🌱 Will these sprout: wet seeds by a window? (a) sprouts (b) does not sprout
4. 4.True or false: a potted plant is not needed for the leafy bag test. (a) False (b) True
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the colour we see (c) the light we look in (d) the liquid we test
6. 6.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
7. 7.🧺 Which of these is not needed for making butter? (a) a timer (b) fresh cream (c) a bowl (d) a balloon
8. 8.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a magnet (c) turmeric powder (d) a potted plant
9. 9.True or false: detergent water is a base. (a) False (b) True
10. 10.🧺 Do we need a timer for making butter? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) warm water (b) sugar (c) sunlight (d) time
12. 12.⚖️ Fair test — do seeds need water to sprout? True or false: wet or dry cotton is the one thing we change. (a) False (b) True
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) soap solution (c) yeast (d) lemon juice
14. 14.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
15. 15.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? True or false: the same paper is kept the same. (a) True (b) False
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the light we look in (c) the liquid we test
17. 17.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: amount of water drops is the one thing we change. (a) True (b) False
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
19. 19.🍞 Which of these is something yeast needs? (a) sunlight (b) vinegar (c) a magnet (d) time
20. 20.🧺 Do we need a bowl for making butter? (a) not needed (b) needed
21. 21.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is kept the same. (a) True (b) False
22. 22.True or false: cold water to rinse is needed for making butter. (a) True (b) False
23. 23.🌱 Which of these is needed for a seed to sprout? (a) air (b) soil (c) sugar (d) sunlight
24. 24.🌊 How is salt made in salt pans by the sea? (a) sand is ground up (b) sea water evaporates (c) salt rains down (d) fish make it
25. 25.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: amount of water drops is what we measure. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) time (b) vinegar (c) sugar (d) warm water
27. 27.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it is much faster (b) it makes salt (c) it turns pink (d) it takes much longer
28. 28.True or false: ironing the paper is a job for an adult. (a) False (b) True
29. 29.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
30. 30.🧺 Which of these is not needed for making butter? (a) a battery cell (b) a jar with a tight lid (c) fresh cream (d) a timer
31. 31.🫧 Which of these is neutral? (a) detergent water (b) salt water (c) tamarind water (d) soap solution
32. 32.🧈 Can this change be undone: baking a cake? (a) can be undone (b) cannot be undone
33. 33.True or false: wet seeds by a window sprouts in a few days. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) tamarind water
35. 35.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) mud from water (d) husk from rice grain
36. 36.True or false: boiled seeds does not sprout. (a) True (b) False
37. 37.🧂 Which of these does not dissolve in water? (a) chalk powder (b) table salt (c) sugar (d) glucose powder
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
40. 40.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet

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