Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 393 · 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.True or false: boiled seeds does not sprout. (a) True (b) False
2. 2.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
3. 3.⚖️ 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) the cream temperature (c) how hard we shake (d) the amount of cream
4. 4.🔍 Which is the odd one out? (a) baking soda (b) chalk powder (c) food colour (d) table salt
5. 5.True or false: fresh cream is needed for making butter. (a) True (b) False
6. 6.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
7. 7.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) make food in sunlight (c) carry water upward (d) hold the plant in soil
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the same bottle (c) size of the balloon (d) the kind of balloon
11. 11.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) warm water (b) dry yeast (c) a mirror (d) a balloon
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
13. 13.🍋 Which of these steps is a job for an adult? (a) writing the message (b) reading the message (c) letting the paper dry (d) cutting the lemon
14. 14.True or false: curd is a base. (a) False (b) True
15. 15.True or false: make food in sunlight is a job of the stem. (a) False (b) True
16. 16.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) exactly the same (c) much less water (d) it fills with soil
17. 17.True or false: baking a cake is a change that can be undone. (a) True (b) False
18. 18.⚖️ 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
19. 19.🌱 Is salt needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
20. 20.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
21. 21.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
22. 22.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
23. 23.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) no crystals (c) bigger crystals (d) liquid crystals
24. 24.True or false: baking soda does not dissolve in water. (a) False (b) True
25. 25.🍋 Which of these steps is a job a child can do? (a) ironing the paper (b) putting the iron away (c) reading the message (d) cutting the lemon
26. 26.True or false: vinegar is something yeast does not need. (a) False (b) True
27. 27.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
28. 28.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
29. 29.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) moong seeds (b) a few days (c) a mirror (d) water
30. 30.🛟 Lemon juice stings cuts and eyes. What should you do after the experiment? (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
31. 31.🔍 Which is the odd one out? (a) sugar (b) time (c) vinegar (d) warm water
32. 32.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
33. 33.True or false: turmeric powder is needed for making butter. (a) True (b) False
34. 34.🧺 Which of these is not needed for the secret lemon message? (a) white paper (b) a balloon (c) a cotton bud (d) a small bowl
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a funnel (d) cotton or cloth
36. 36.True or false: salt water is a base. (a) True (b) False
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the same jar is what we measure. (a) False (b) True
39. 39.True or false: a clear plastic bag is needed for the leafy bag test. (a) True (b) False
40. 40.🧺 Which of these is needed for the yeast balloon? (a) a comb (b) turmeric powder (c) a balloon (d) a magnet

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