Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 486 · 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 not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) a magnet
2. 2.⚖️ 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 glass
3. 3.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) evaporating (d) winnowing
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) sand and pebbles (d) a funnel
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
6. 6.⚖️ 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 funnel
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) a mirror
8. 8.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) sand and pebbles (d) muddy water
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) sand and pebbles (d) cotton or cloth
13. 13.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
14. 14.⚖️ 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 change it (c) we keep it the same
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.True or false: husk from rice grain is done by winnowing. (a) True (b) False
17. 17.⚖️ 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
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
19. 19.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
20. 20.🫗 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
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) a funnel (d) muddy water
22. 22.🫗 Which of these is done by sieving? (a) mud from water (b) gravel from fine sand (c) chaff from wheat grain (d) salt from sea water
23. 23.🫗 How do we separate gravel from fine sand? (a) sieving (b) filtering (c) evaporating (d) winnowing
24. 24.True or false: tea leaves from tea is done by filtering. (a) True (b) False
25. 25.True or false: bran from wheat flour is done by filtering. (a) False (b) True
26. 26.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) winnowing (d) filtering
27. 27.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a funnel (d) cotton or cloth
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
30. 30.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a mirror
32. 32.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
33. 33.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) sugar from sugar water (d) bad grains from rice
34. 34.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) how clear the water is (c) the same funnel (d) the amount poured
37. 37.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
38. 38.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
39. 39.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
40. 40.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True

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