Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 548 · 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 cold cream turn into butter faster than warm cream? Which of these is the one thing we change? (a) how hard we shake (b) the cream temperature (c) time to make butter (d) the amount of cream
2. 2.🛟 Who should use the hot iron in the secret message experiment? (a) any child (b) whoever is fastest (c) the youngest child (d) only an adult
3. 3.True or false: glucose powder dissolves in water. (a) False (b) True
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a battery cell (d) an empty bottle
5. 5.⚖️ 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) amount of water drops (b) sun or shade (c) the size of the plant (d) the time we wait
6. 6.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the amount of yeast is the one thing we change. (a) False (b) True
7. 7.🪴 Which of these is a job of the roots? (a) take in water from soil (b) make seeds (c) hold up the leaves (d) make food in sunlight
8. 8.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the same bottles is what we measure. (a) True (b) False
9. 9.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is the one thing we change. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) putting the iron away (b) cutting the lemon (c) ironing the paper (d) reading the message
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) white paper (b) an adult with an iron (c) turmeric powder (d) lemon juice
13. 13.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
14. 14.⚖️ Fair test — do seeds need water to sprout? True or false: the number of seeds is kept the same. (a) True (b) False
15. 15.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) lemon juice (d) soap solution
17. 17.True or false: warmth is needed for a seed to sprout. (a) False (b) True
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) the same muddy water (d) the same funnel
19. 19.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
20. 20.🧺 Do we need cold water to rinse for making butter? (a) not needed (b) needed
21. 21.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
22. 22.🍋 Which of these steps is a job for an adult? (a) plugging in the iron (b) reading the message (c) letting the paper dry (d) dipping the cotton bud
23. 23.⚖️ Fair test — do seeds need water to sprout? Which of these is what we measure? (a) the kind of seeds (b) the same bowls (c) how many seeds sprout (d) the number of seeds
24. 24.🧺 Do we need yeast for the secret lemon message? (a) not needed (b) needed
25. 25.True or false: vinegar is something yeast needs. (a) True (b) False
26. 26.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
27. 27.⚖️ Fair test — do seeds need water to sprout? What do we do with “the number of seeds”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🧺 Which of these is needed for making butter? (a) a magnet (b) a mirror (c) a balloon (d) a timer
29. 29.🧂 Which of these dissolves in water? (a) sand (b) glucose powder (c) cooking oil (d) chalk powder
30. 30.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) sugar (d) a funnel or spoon
32. 32.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
33. 33.🔮 Predict (do not try it): yeast is put in boiling water. What happens? (a) it grows faster (b) it turns to sugar (c) the yeast is killed (d) it glows
34. 34.🧺 Do we need a cotton bud for the secret lemon message? (a) not needed (b) needed
35. 35.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
36. 36.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a clear plastic bag (c) vinegar (d) a potted plant
37. 37.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
38. 38.🍞 Why does yeast work slowly in cold water? (a) cold makes it pink (b) cold kills sugar (c) cold water is heavy (d) cold slows yeast down
39. 39.🔍 Which is the odd one out? (a) melting butter (b) cooking an egg (c) rusting iron (d) browning lemon ink
40. 40.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids