Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 878 · 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.🫗 Which of these is done by winnowing? (a) salt from sea water (b) gravel from fine sand (c) chaff from wheat grain (d) small stones from dal
2. 2.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
3. 3.🛟 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
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) yeast (d) sand and pebbles
5. 5.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a battery cell (d) cotton or cloth
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a battery cell (d) a clean glass
11. 11.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
12. 12.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
13. 13.🫗 Which of these is done by sieving? (a) mud from water (b) small stones from dal (c) gravel from fine sand (d) husk from rice grain
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) yeast (d) a clean glass
15. 15.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
17. 17.True or false: bad grains from rice is done by sieving. (a) True (b) False
18. 18.⚖️ 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 same glass (c) how clear the water is (d) the same muddy water
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.True or false: gravel from fine sand is done by sieving. (a) True (b) False
21. 21.⚖️ 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
22. 22.🔮 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
23. 23.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
25. 25.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) handpicking (d) sieving
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
27. 27.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) small stones from dal (c) sugar from sugar water (d) mud from water
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a balloon
29. 29.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) yeast (d) a funnel
32. 32.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
33. 33.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
34. 34.⚖️ 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 funnel (b) the filter material (c) how clear the water is (d) the same muddy water
35. 35.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
36. 36.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) tea leaves from tea (d) sugar from sugar water
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a mirror (c) a clean glass (d) a funnel
40. 40.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) tea leaves from tea (c) gravel from fine sand (d) husk from rice grain

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