Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 360 · 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.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) vinegar (d) a magnet
3. 3.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) baking soda (d) table salt
5. 5.🌱 Which of these is not needed for a seed to sprout? (a) water (b) sugar (c) warmth (d) air
6. 6.🌱 Which of these does not sprout? (a) seeds on dry cotton (b) wet seeds in the dark (c) wet seeds by a window (d) seeds on wet cotton
7. 7.🫧 Which of these is an acid? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
8. 8.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
11. 11.🍞 Which of these is something yeast needs? (a) sugar (b) vinegar (c) sunlight (d) a magnet
12. 12.🔍 Which is the odd one out? (a) reading the message (b) letting the paper dry (c) ironing the paper (d) dipping the cotton bud
13. 13.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) white paper (b) a small bowl (c) a cotton bud (d) a balloon
14. 14.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
15. 15.🧺 Do we need a bowl for making butter? (a) not needed (b) needed
16. 16.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.🔍 Which is the odd one out? (a) ironing the paper (b) plugging in the iron (c) writing the message (d) putting the iron away
18. 18.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
19. 19.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) leaves (c) stem (d) flower
20. 20.🛟 The water for the yeast should be ___. (a) ice cold (b) boiling hot (c) warm, not hot (d) very salty
21. 21.True or false: boiled seeds does not sprout. (a) True (b) False
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🧺 Do we need a magnet for making butter? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a magnet (c) a potted plant (d) a battery cell
25. 25.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) hydrogen (d) oxygen
26. 26.True or false: a few hours is needed for the leafy bag test. (a) True (b) False
27. 27.🧈 What is the watery liquid left after the butter forms? (a) honey (b) vinegar (c) oil (d) buttermilk
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
30. 30.🪴 Which part of a plant does this job: make seeds? (a) flower (b) leaves (c) roots (d) stem
31. 31.⚖️ 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) True (b) False
32. 32.⚖️ Fair test — does cold cream turn into butter faster than warm cream? Which of these is the one thing we change? (a) time to make butter (b) how hard we shake (c) the cream temperature (d) the amount of cream
33. 33.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the cream temperature”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.True or false: an adult with an iron is needed for the secret lemon message. (a) False (b) True
35. 35.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) sugar from sugar water (c) bran from wheat flour (d) husk from rice grain
36. 36.🍋 Which of these steps is a job for an adult? (a) dipping the cotton bud (b) writing the message (c) reading the message (d) ironing the paper
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.True or false: a magnet is needed for the yeast balloon. (a) True (b) False

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