Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 137 · 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) hot (b) muddier (c) salty (d) clearer
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a clean glass (d) cotton or cloth
3. 3.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
4. 4.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) handpicking (d) filtering
5. 5.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) chaff from wheat grain (c) small stones from dal (d) salt from sea water
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
7. 7.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) evaporating (d) winnowing
8. 8.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) bad grains from rice (c) mud from water (d) gravel from fine sand
9. 9.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
11. 11.True or false: salt from sea water is done by sieving. (a) False (b) True
12. 12.True or false: gravel from fine sand is done by sieving. (a) False (b) True
13. 13.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) winnowing (d) filtering
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a balloon (d) cotton or cloth
15. 15.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
16. 16.🫗 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
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) cotton or cloth
20. 20.True or false: tea leaves from tea is done by filtering. (a) True (b) False
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a magnet (d) sand and pebbles
24. 24.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
25. 25.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
26. 26.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the filter material (d) the same muddy water
28. 28.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) cotton or cloth (d) turmeric powder
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a battery cell (d) a balloon
32. 32.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
35. 35.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) evaporating (c) winnowing (d) filtering
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
37. 37.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) bran from wheat flour (d) mud from water
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) yeast (d) turmeric powder
39. 39.True or false: mud from water is done by handpicking. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is

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