Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 987 · 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.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a balloon (c) yeast (d) turmeric powder
3. 3.🫗 Which of these is done by sieving? (a) mud from water (b) small stones from dal (c) chaff from wheat grain (d) bran from wheat flour
4. 4.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) yes, all of it (d) it turns to sugar
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same muddy water
6. 6.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) filtering (d) winnowing
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a clean glass (d) cotton or cloth
8. 8.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
9. 9.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
10. 10.🫗 How do we separate mud from water? (a) handpicking (b) winnowing (c) sieving (d) filtering
11. 11.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) yeast (d) a funnel
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) muddy water (d) a clean glass
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
16. 16.⚖️ 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) how clear the water is (d) the same muddy water
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) sand and pebbles (d) turmeric powder
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
20. 20.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) sand and pebbles (d) a clean glass
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: mud from water is done by filtering. (a) False (b) True
24. 24.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
25. 25.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) small stones from dal (c) chaff from wheat grain (d) bran from wheat flour
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) sand and pebbles (d) a funnel
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) cotton or cloth (d) a clean glass
32. 32.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
33. 33.True or false: mud from water is done by sieving. (a) False (b) True
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a funnel (d) a magnet
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
37. 37.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
38. 38.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
39. 39.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
40. 40.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bran from wheat flour (c) bad grains from rice (d) salt from sea water

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