Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 757 · 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.🪴 Through which part does a plant take in water from the soil? (a) the leaves (b) the fruits (c) the flowers (d) the roots
2. 2.True or false: glucose powder does not dissolve in water. (a) True (b) False
3. 3.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a cotton bud (b) an adult with an iron (c) white paper (d) yeast
4. 4.🍞 Where is yeast used in the kitchen? (a) to make bread rise (b) to wash dishes (c) to clean floors (d) to colour rice
5. 5.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
6. 6.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a paper clip (b) warm water (c) sugar (d) dry yeast
7. 7.True or false: letting the paper dry is a job a child can do. (a) True (b) False
8. 8.🧺 Which of these is needed for making butter? (a) a timer (b) a magnet (c) a battery cell (d) yeast
9. 9.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? True or false: the kind of juice is the one thing we change. (a) True (b) False
10. 10.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
11. 11.True or false: a balloon is not needed for the yeast balloon. (a) True (b) False
12. 12.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: how hard we shake is kept the same. (a) True (b) False
13. 13.🧈 Which of these is a change that can be undone? (a) baking a cake (b) browning lemon ink (c) rusting iron (d) dissolving salt
14. 14.True or false: a comb is needed for the turmeric test. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) salt water (b) soap solution (c) plain water (d) vinegar
16. 16.True or false: a mirror is needed for the secret lemon message. (a) True (b) False
17. 17.🍋 Secret message: who does this step — cutting the lemon? (a) an adult does it (b) a child can do it
18. 18.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same place”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.True or false: turmeric powder is not needed for the turmeric test. (a) True (b) False
20. 20.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) salt crystals form (c) it turns to oil (d) sugar crystals form
21. 21.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny spheres (b) tiny triangles (c) tiny stars (d) tiny cubes
22. 22.🔍 Which is the odd one out? (a) air (b) warmth (c) water (d) sunlight
23. 23.🍋 Why can’t you see the lemon writing once it dries? (a) the ink is magnetic (b) dry juice is see-through (c) it turned into air (d) the paper ate it
24. 24.True or false: dry yeast is needed for the yeast balloon. (a) True (b) False
25. 25.True or false: yeast is needed for sprouting seeds. (a) False (b) True
26. 26.📘 What is yeast? (a) a kind of stone (b) a kind of sugar (c) a kind of salt (d) a tiny living fungus
27. 27.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the water evaporates (d) the filter adds soap
28. 28.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a few hours (c) a clear plastic bag (d) a potted plant
29. 29.🧺 Which of these is needed for making butter? (a) a bowl (b) a battery cell (c) a magnet (d) a balloon
30. 30.🧈 Can this change be undone: cooking an egg? (a) can be undone (b) cannot be undone
31. 31.🧈 Can this change be undone: freezing water? (a) can be undone (b) cannot be undone
32. 32.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a clear plastic bag (c) a mirror (d) yeast
33. 33.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) turmeric powder (c) white paper strips (d) a mirror
34. 34.True or false: seeds in the freezer does not sprout. (a) False (b) True
35. 35.🍋 Secret message: who does this step — putting the iron away? (a) an adult does it (b) a child can do it
36. 36.🧂 Which of these dissolves in water? (a) table salt (b) cooking oil (c) small pebbles (d) chalk powder
37. 37.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) cotton wool (b) moong seeds (c) a magnet (d) water
38. 38.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) a mirror (b) a few days (c) a small bowl (d) water
39. 39.True or false: give out water vapour is a job of the leaves. (a) True (b) False
40. 40.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed

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