Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 805 · 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.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) reddish-brown (c) it turns green (d) it stays yellow
2. 2.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it flowers more (c) it wilts and droops (d) it turns blue
3. 3.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) green (c) reddish (d) white at once
4. 4.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Which of these is not needed for making butter? (a) a bowl (b) a timer (c) cold water to rinse (d) turmeric powder
6. 6.🧺 Do we need a small bowl for the secret lemon message? (a) needed (b) not needed
7. 7.🫗 How do we separate salt from sea water? (a) handpicking (b) filtering (c) sieving (d) evaporating
8. 8.🔍 Which is the odd one out? (a) warmth (b) salt (c) sugar (d) sunlight
9. 9.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) table salt (b) sugar (c) small pebbles (d) baking soda
11. 11.🧺 Which of these is needed for making butter? (a) a battery cell (b) turmeric powder (c) a mirror (d) a timer
12. 12.🧺 Do we need a mirror for making butter? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) a funnel (d) turmeric powder
14. 14.🫧 Which of these is a base? (a) soap solution (b) sugar water (c) vinegar (d) curd
15. 15.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
16. 16.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
17. 17.🔮 Predict: you leave out the sugar. What happens to the balloon? (a) it grows very little (b) it bursts at once (c) it turns yellow (d) it grows much faster
18. 18.True or false: sugar is not needed for the yeast balloon. (a) True (b) False
19. 19.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) yeast (c) a balloon (d) turmeric powder
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) an empty bottle (d) a balloon
21. 21.🫧 Which of these is a base? (a) baking soda water (b) vinegar (c) sugar water (d) plain water
22. 22.🧺 Do we need sugar for the yeast balloon? (a) not needed (b) needed
23. 23.🌱 Is warmth needed for a seed to sprout? (a) needed to sprout (b) not needed to sprout
24. 24.🧺 Do we need turmeric powder for sprouting seeds? (a) needed (b) not needed
25. 25.True or false: warm water is something yeast does not need. (a) False (b) True
26. 26.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) the size of the plant (b) amount of water drops (c) the kind of plant (d) the time we wait
27. 27.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) yeast (c) water (d) a dropper or spoon
28. 28.🍞 Why does yeast work slowly in cold water? (a) cold slows yeast down (b) cold water is heavy (c) cold makes it pink (d) cold kills sugar
29. 29.True or false: a clear plastic bag is not needed for the leafy bag test. (a) False (b) True
30. 30.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) vinegar (c) baking soda water (d) detergent water
32. 32.True or false: food colour dissolves in water. (a) False (b) True
33. 33.True or false: vinegar is something yeast does not need. (a) True (b) False
34. 34.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) cotton or cloth (d) a battery cell
35. 35.True or false: a small bottle is not needed for the yeast balloon. (a) False (b) True
36. 36.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a clear plastic bag (c) a few hours (d) vinegar
37. 37.⚖️ Fair test — do seeds need water to sprout? True or false: the kind of seeds is kept the same. (a) True (b) False
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
39. 39.🍋 Secret message: who does this step — reading the message? (a) a child can do it (b) an adult does it
40. 40.True or false: soap solution is needed for the turmeric test. (a) False (b) True

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