Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 830 · 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: a battery cell is needed for the fizzy balloon. (a) False (b) True
2. 2.🧺 Which of these is needed for the turmeric test? (a) yeast (b) white paper strips (c) a comb (d) a battery cell
3. 3.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) sunlight (c) a magnet (d) a rubber band
4. 4.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is the one thing we change? (a) the same kind of bag (b) amount of water drops (c) the size of the plant (d) sun or shade
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🌱 Is air needed for a seed to sprout? (a) needed to sprout (b) not needed to sprout
7. 7.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
8. 8.🫧 Which of these is an acid? (a) soap solution (b) baking soda water (c) detergent water (d) lemon juice
9. 9.⚖️ Fair test — does cold cream turn into butter faster than warm cream? Which of these is what we measure? (a) the amount of cream (b) the same jar (c) time to make butter (d) the cream temperature
10. 10.🔍 Which is the odd one out? (a) freezing water (b) folding paper (c) browning lemon ink (d) dissolving salt
11. 11.🧺 Which of these is needed for the yeast balloon? (a) a battery cell (b) a magnet (c) turmeric powder (d) sugar
12. 12.True or false: water is not needed for a seed to sprout. (a) True (b) False
13. 13.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) sniff each bottle hard (d) use only kitchen items
14. 14.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) lemon juice
15. 15.🧺 Which of these is not needed for the yeast balloon? (a) a small bottle (b) turmeric powder (c) dry yeast (d) sugar
16. 16.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the amount of cream is the one thing we change. (a) True (b) False
17. 17.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the same jar is the one thing we change. (a) True (b) False
18. 18.True or false: yeast is needed for the leafy bag test. (a) False (b) True
19. 19.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) bran from wheat flour (d) sugar from sugar water
20. 20.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a small bottle (b) sugar (c) a magnet (d) warm water
21. 21.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same bowls”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.🛟 After the yeast experiment, what should you do with the mixture? (a) throw it at a wall (b) pour it down the sink (c) put it in your mouth (d) keep it for a month
24. 24.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is kept the same? (a) the water temperature (b) the amount of water (c) size of the balloon
25. 25.🧺 Which of these is not needed for sprouting seeds? (a) a battery cell (b) cotton wool (c) a small bowl (d) moong seeds
26. 26.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
27. 27.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a magnet (d) cotton or cloth
28. 28.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a mirror (b) white paper (c) a cotton bud (d) lemon juice
29. 29.🔮 Predict: you leave out the sugar. What happens to the balloon? (a) it turns yellow (b) it grows very little (c) it bursts at once (d) it grows much faster
30. 30.True or false: water is needed for the turmeric test. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) chalk powder (d) sawdust
32. 32.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny spheres (b) tiny stars (c) tiny cubes (d) tiny triangles
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a balloon (d) a magnet
34. 34.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a bowl (b) fresh cream (c) a jar with a tight lid (d) a mirror
35. 35.🛟 What should you do after touching soil or seeds? (a) skip washing (b) wash your hands (c) rub your eyes (d) lick your fingers
36. 36.True or false: detergent water is a base. (a) True (b) False
37. 37.True or false: air is not needed for a seed to sprout. (a) True (b) False
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) vinegar (d) baking soda
39. 39.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) detergent water (d) plain water
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda

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