Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 779 · 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 secret lemon message. Which one is NOT needed? (a) an adult with an iron (b) a magnet (c) white paper (d) lemon juice
2. 2.🧺 Which of these is not needed for the secret lemon message? (a) a magnet (b) a small bowl (c) lemon juice (d) a cotton bud
3. 3.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the amount of water is kept the same. (a) True (b) False
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
5. 5.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
6. 6.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) moong seeds (b) cotton wool (c) a battery cell (d) water
7. 7.True or false: tamarind water is neutral. (a) False (b) True
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material 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? What do we do with “the same kind of bag”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) lemon juice (c) soap solution (d) a mirror
11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is the one thing we change. (a) True (b) False
12. 12.🧺 Which of these is needed for the secret lemon message? (a) a balloon (b) a mirror (c) a small bowl (d) a battery cell
13. 13.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a potted plant (c) yeast (d) a rubber band
14. 14.🔍 Which is the odd one out? (a) baking soda water (b) salt water (c) soap solution (d) detergent water
15. 15.True or false: a battery cell is needed for the yeast balloon. (a) False (b) True
16. 16.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) much less water (c) it fills with soil (d) much more water
17. 17.True or false: warm water is not needed for the yeast balloon. (a) True (b) False
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
19. 19.🧂 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) the amount of vinegar (d) size of the balloon
21. 21.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) curd
22. 22.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a mirror (c) yeast (d) turmeric powder
23. 23.🧺 Which of these is needed for the yeast balloon? (a) a magnet (b) sugar (c) a paper clip (d) a comb
24. 24.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the ironing time”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
26. 26.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the kind of plant”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🍋 Which of these steps is a job for an adult? (a) dipping the cotton bud (b) writing the message (c) cutting the lemon (d) letting the paper dry
28. 28.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) moong seeds (b) a few days (c) a magnet (d) water
29. 29.🧺 Which of these is needed for sprouting seeds? (a) turmeric powder (b) yeast (c) water (d) a magnet
30. 30.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
31. 31.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny stars (c) tiny spheres (d) tiny triangles
32. 32.True or false: a battery cell is needed for the leafy bag test. (a) True (b) False
33. 33.🌱 Is salt needed for a seed to sprout? (a) needed to sprout (b) not needed to sprout
34. 34.🧺 Which of these is not needed for the yeast balloon? (a) sugar (b) a balloon (c) a small bottle (d) turmeric powder
35. 35.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is the one thing we change? (a) the same bottles (b) the amount of yeast (c) size of the balloon (d) the water temperature
36. 36.🍞 Where is yeast used in the kitchen? (a) to make bread rise (b) to wash dishes (c) to colour rice (d) to clean floors
37. 37.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a battery cell (b) warm water (c) sugar (d) dry yeast
38. 38.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “how hard we shake”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a battery cell (b) a piece of string (c) salt (d) a spoon
40. 40.🌱 Which of these sprouts in a few days? (a) seeds in the freezer (b) boiled seeds (c) seeds on dry cotton (d) seeds on wet cotton

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