Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 735 · 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.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) food colour (d) glucose powder
2. 2.🔍 Which is the odd one out? (a) vinegar (b) sunlight (c) time (d) a magnet
3. 3.⚖️ Fair test — do seeds need water to sprout? What do we do with “how many seeds sprout”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a mirror (c) lemon juice (d) soap solution
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a balloon
6. 6.True or false: tamarind water is neutral. (a) True (b) False
7. 7.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) no crystals (c) liquid crystals (d) bigger crystals
8. 8.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) cooking oil (d) baking soda
9. 9.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same bowls”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is the one thing we change. (a) True (b) False
11. 11.🔮 Predict: the adult irons for only one second. What happens? (a) it gets darker (b) writing stays faint (c) the paper floats (d) writing turns green
12. 12.🍋 Why can’t you see the lemon writing once it dries? (a) the ink is magnetic (b) the paper ate it (c) it turned into air (d) dry juice is see-through
13. 13.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is what we measure? (a) the amount of sugar (b) size of the balloon (c) the amount of yeast (d) the water temperature
14. 14.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) sand (d) sawdust
15. 15.⚖️ Fair test — do seeds need water to sprout? What do we do with “the number of seeds”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) cooking oil (d) sugar
17. 17.True or false: tea leaves from tea is done by filtering. (a) True (b) False
18. 18.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) a huge eruption (d) very little fizzing
19. 19.⚖️ 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) sun or shade (b) the kind of plant (c) the size of the plant (d) the same kind of bag
20. 20.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
21. 21.🟡 Which of these keeps turmeric yellow? (a) vinegar (b) soap solution (c) detergent water (d) baking soda water
22. 22.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
23. 23.🧺 Which of these is not needed for the secret lemon message? (a) white paper (b) a mirror (c) a small bowl (d) an adult with an iron
24. 24.🧺 Which of these is not needed for making butter? (a) a bowl (b) cold water to rinse (c) a timer (d) a magnet
25. 25.🧺 Do we need a mirror for the yeast balloon? (a) needed (b) not needed
26. 26.🟡 Turmeric paper meets plain water. What happens? (a) stays yellow (b) turns reddish-brown
27. 27.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a potted plant (c) a mirror (d) a rubber band
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
29. 29.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a timer (b) a magnet (c) a jar with a tight lid (d) cold water to rinse
30. 30.True or false: a jar with a tight lid is not needed for making butter. (a) True (b) False
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the liquid we test (b) the turmeric paper (c) the number of drops (d) the light we look in
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) yeast (d) white paper strips
33. 33.🌱 Is air needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
34. 34.🔍 Which is the odd one out? (a) ironing the paper (b) writing the message (c) putting the iron away (d) cutting the lemon
35. 35.🧈 Which tool is used in many Indian homes to churn curd into butter? (a) a rolling pin (b) a pressure cooker (c) a sieve (d) a mathani (churner)
36. 36.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the time we wait”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a timer (b) fresh cream (c) cold water to rinse (d) a battery cell
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.True or false: turmeric powder is not needed for growing salt crystals. (a) False (b) True
40. 40.🧈 What is the watery liquid left after the butter forms? (a) vinegar (b) oil (c) honey (d) buttermilk

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