Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 931 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.🫗 How do we separate bran from wheat flour? (a) winnowing (b) evaporating (c) handpicking (d) sieving
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
3. 3.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
4. 4.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
5. 5.True or false: husk from rice grain is done by evaporating. (a) False (b) True
6. 6.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) salt from sea water (c) mud from water (d) chaff from wheat grain
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
9. 9.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) handpicking (d) filtering
10. 10.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the amount poured
12. 12.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) handpicking (d) evaporating
13. 13.True or false: mud from water is done by filtering. (a) False (b) True
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
15. 15.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
16. 16.True or false: tea leaves from tea is done by filtering. (a) False (b) True
17. 17.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) a funnel (d) muddy water
19. 19.True or false: gravel from fine sand is done by sieving. (a) True (b) False
20. 20.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) small stones from dal (c) chaff from wheat grain (d) sugar from sugar water
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) sand and pebbles (d) yeast
25. 25.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a mirror (d) muddy water
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) how clear the water is (d) the same muddy water
28. 28.True or false: yeast is needed for the muddy water filter. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
30. 30.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
31. 31.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
32. 32.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same funnel
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the filter material (c) the same muddy water (d) how clear the water is
35. 35.🫗 Which of these is done by winnowing? (a) mud from water (b) small stones from dal (c) husk from rice grain (d) gravel from fine sand
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) a magnet
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) turmeric powder
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a balloon
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) turmeric powder (d) a magnet

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