Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 480 · 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) water (d) lemon juice
2. 2.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) baking soda (d) sand
3. 3.🧺 Which of these is not needed for making butter? (a) cold water to rinse (b) a bowl (c) a battery cell (d) fresh cream
4. 4.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
5. 5.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny triangles (b) tiny cubes (c) tiny spheres (d) tiny stars
6. 6.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) no crystals (c) liquid crystals (d) bigger crystals
7. 7.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) mix bathroom cleaners (d) sip each liquid
8. 8.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) sugar (d) sawdust
9. 9.🪴 Which part of a plant does this job: carry water upward? (a) stem (b) flower (c) leaves (d) roots
10. 10.🍞 Which of these is something yeast does not need? (a) warm water (b) vinegar (c) time (d) sugar
11. 11.True or false: seeds on wet cotton does not sprout. (a) False (b) True
12. 12.⚖️ Fair test — do seeds need water to sprout? Which of these is kept the same? (a) wet or dry cotton (b) how many seeds sprout (c) the same bowls
13. 13.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a magnet (c) a spoon (d) salt
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a funnel or spoon (c) a balloon (d) baking soda
15. 15.🧈 Can this change be undone: dissolving salt? (a) cannot be undone (b) can be undone
16. 16.🔮 Predict: seeds on wet cotton are kept in the freezer. What happens? (a) they glow (b) they sprout faster (c) they grow fruit (d) they do not sprout
17. 17.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) yeast (c) a shallow dish (d) salt
18. 18.🔮 Predict: you stop shaking after only one minute. What do you have? (a) butter lumps (b) ghee (c) cheese (d) still runny cream
19. 19.🧈 Which of these is a change that can be undone? (a) rusting iron (b) browning lemon ink (c) baking a cake (d) folding paper
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
21. 21.🧺 Do we need a balloon for making butter? (a) not needed (b) needed
22. 22.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a prism (c) a pulley (d) a magnet
23. 23.🍋 Which of these steps is a job for an adult? (a) writing the message (b) dipping the cotton bud (c) reading the message (d) putting the iron away
24. 24.True or false: a piece of string is not needed for growing salt crystals. (a) True (b) False
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) sand and pebbles (d) a funnel
26. 26.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
27. 27.🧺 Do we need yeast for growing salt crystals? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a comb (b) sugar (c) warm water (d) a balloon
29. 29.⚖️ Fair test — do seeds need water to sprout? True or false: how many seeds sprout is the one thing we change. (a) True (b) False
30. 30.🌱 Which of these is not needed for a seed to sprout? (a) water (b) air (c) warmth (d) sugar
31. 31.🍞 Does yeast need warm water to make gas? (a) yeast needs it (b) yeast does not need it
32. 32.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) flower (c) roots (d) leaves
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) baking soda (d) sugar
34. 34.⚖️ Fair test — do seeds need water to sprout? True or false: the kind of seeds is kept the same. (a) True (b) False
35. 35.🫧 Which of these is neutral? (a) baking soda water (b) vinegar (c) sugar water (d) lemon juice
36. 36.🛟 What should you do after touching soil or seeds? (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
37. 37.🟡 Turmeric paper meets lemon juice. What happens? (a) stays yellow (b) turns reddish-brown
38. 38.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
40. 40.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) soap solution (c) a mirror (d) lemon juice

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