Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 360 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
2. 2.🫗 Which of these is done by filtering? (a) small stones from dal (b) sugar from sugar water (c) tea leaves from tea (d) salt from sea water
3. 3.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) a funnel (d) muddy water
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
6. 6.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) small stones from dal (d) bad grains from rice
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
8. 8.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
9. 9.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a battery cell
12. 12.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
13. 13.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
15. 15.🫗 Which of these is done by sieving? (a) husk from rice grain (b) tea leaves from tea (c) bran from wheat flour (d) small stones from dal
16. 16.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
17. 17.⚖️ 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
18. 18.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) salt from sea water (c) husk from rice grain (d) small stones from dal
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 measure it (b) we keep it the same (c) we change it
20. 20.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) husk from rice grain (d) sugar from sugar water
21. 21.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) winnowing (d) handpicking
22. 22.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) sieving (d) winnowing
23. 23.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
24. 24.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
25. 25.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
26. 26.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, if it is cold (d) yes, always
27. 27.🫗 How do we separate salt from sea water? (a) filtering (b) sieving (c) winnowing (d) evaporating
28. 28.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) bad grains from rice (c) husk from rice grain (d) chaff from wheat grain
29. 29.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
30. 30.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) muddy water
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) muddy water (d) sand and pebbles
36. 36.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
37. 37.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Do we need a battery cell 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) a funnel (b) a clean glass (c) a mirror (d) muddy water
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) turmeric powder (d) yeast

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