Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 551 · 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 turmeric test. Which one is NOT needed? (a) a balloon (b) a dropper or spoon (c) lemon juice (d) water
2. 2.True or false: orange juice is an acid. (a) True (b) False
3. 3.🛟 After the yeast experiment, what should you do with the mixture? (a) keep it for a month (b) put it in your mouth (c) pour it down the sink (d) throw it at a wall
4. 4.🔍 Which is the odd one out? (a) vinegar (b) a magnet (c) time (d) salt
5. 5.🧈 Before the butter appears, what does the cream turn into? (a) ice (b) powder (c) thick whipped cream (d) clear water
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) lemon juice (c) yeast (d) a dropper or spoon
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
8. 8.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is what we measure? (a) the same bottles (b) the water temperature (c) the amount of yeast (d) size of the balloon
9. 9.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a dropper or spoon (c) white paper strips (d) a magnet
10. 10.⚖️ 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) the same kind of bag (b) amount of water drops (c) sun or shade
11. 11.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) gas is made inside (d) outside air gets in
12. 12.True or false: an adult with an iron is not needed for the secret lemon message. (a) True (b) False
13. 13.True or false: a bowl is needed for making butter. (a) True (b) False
14. 14.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
15. 15.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) how clear the water is (d) the same glass
17. 17.🌱 Is air needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
18. 18.🧺 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) cold water to rinse
19. 19.True or false: turmeric powder is not needed for the turmeric test. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) lemon juice (d) baking soda water
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) False (b) True
22. 22.🧈 Why does shaking cream make butter? (a) fat bits stick together (b) the jar adds butter (c) the lid is warm (d) shaking adds salt
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
24. 24.🍋 Which of these steps is a job for an adult? (a) writing the message (b) dipping the cotton bud (c) reading the message (d) plugging in the iron
25. 25.🧺 Do we need a comb for the yeast balloon? (a) needed (b) not needed
26. 26.🧺 Do we need a small bowl for the secret lemon message? (a) needed (b) not needed
27. 27.True or false: sugar is not needed for the yeast balloon. (a) True (b) False
28. 28.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the same paper”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🌱 Which of these does not sprout? (a) seeds on dry cotton (b) wet seeds by a window (c) seeds on wet cotton (d) wet seeds in the dark
30. 30.True or false: water is needed for the turmeric test. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) a balloon
32. 32.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
33. 33.🔮 Can the brown writing go back to being invisible? (a) yes, if cooled (b) no, it stays brown (c) yes, if shaken (d) yes, in the dark
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🌱 Is salt needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
36. 36.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
37. 37.🧈 Which of these is a change that cannot be undone? (a) dissolving salt (b) melting ice (c) browning lemon ink (d) melting butter
38. 38.🍋 Which of these steps is a job a child can do? (a) letting the paper dry (b) putting the iron away (c) ironing the paper (d) plugging in the iron
39. 39.True or false: tea leaves from tea is done by filtering. (a) True (b) False
40. 40.🧺 Do we need a mirror for the secret lemon message? (a) needed (b) not needed

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