Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 588 · 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 small stones from dal? (a) winnowing (b) evaporating (c) sieving (d) handpicking
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) the filter material (c) the same funnel (d) how clear the water is
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
4. 4.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, always (d) yes, if it is cold
5. 5.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) mud from water (c) sugar from sugar water (d) bad grains from rice
6. 6.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
8. 8.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same funnel (c) how clear the water is (d) the amount poured
10. 10.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
11. 11.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
12. 12.🫗 How do we separate husk from rice grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) muddy water (d) sand and pebbles
14. 14.⚖️ 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
15. 15.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a funnel (c) muddy water (d) sand and pebbles
17. 17.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
18. 18.🫗 How do we separate salt from sea water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) yeast (d) sand and pebbles
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) salt from sea water (d) bad grains from rice
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) a funnel (d) muddy water
24. 24.True or false: bad grains from rice is done by sieving. (a) True (b) False
25. 25.⚖️ 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 muddy water
26. 26.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
27. 27.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) a balloon (d) a mirror
28. 28.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) salt from sea water (c) chaff from wheat grain (d) sugar from sugar water
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a mirror
30. 30.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
31. 31.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) bad grains from rice (c) tea leaves from tea (d) sugar from sugar water
32. 32.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) sugar from sugar water (d) gravel from fine sand
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
34. 34.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
35. 35.True or false: husk from rice grain is done by winnowing. (a) True (b) False
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
37. 37.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a battery cell (d) a funnel
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a magnet (d) a clean glass

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