Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 924 · 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) small stones from dal (b) mud from water (c) gravel from fine sand (d) chaff from wheat grain
2. 2.🫗 Which of these is done by sieving? (a) salt from sea water (b) sugar from sugar water (c) bran from wheat flour (d) small stones from dal
3. 3.True or false: bran from wheat flour is done by sieving. (a) False (b) True
4. 4.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) sieving (d) handpicking
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
6. 6.⚖️ 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 same muddy water (c) the filter material
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a battery cell (d) muddy water
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) cotton or cloth (d) a battery cell
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) sand and pebbles (d) a clean glass
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) yeast
15. 15.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) a clean glass
17. 17.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
18. 18.🛟 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
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
21. 21.🫗 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
22. 22.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
24. 24.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) evaporating (d) handpicking
25. 25.⚖️ 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) how clear the water is (c) the same muddy water (d) the amount poured
26. 26.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
27. 27.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
30. 30.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
31. 31.⚖️ 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) how clear the water is (c) the same muddy water (d) the filter material
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) cotton or cloth (d) muddy water
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) muddy water (d) a clean glass
34. 34.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) yeast (d) a balloon
35. 35.🫗 Which of these is done by handpicking? (a) small stones from dal (b) husk from rice grain (c) bran from wheat flour (d) salt from sea water
36. 36.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) muddy water (d) a magnet
37. 37.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) filtering (d) handpicking
38. 38.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 Which of these is done by filtering? (a) bad grains from rice (b) salt from sea water (c) mud from water (d) sugar from sugar water
40. 40.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed

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