Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 330 · 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.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
2. 2.True or false: husk from rice grain is done by winnowing. (a) True (b) False
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a magnet
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
6. 6.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) winnowing (d) evaporating
7. 7.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
8. 8.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) muddy water (d) a battery cell
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.True or false: bad grains from rice is done by handpicking. (a) False (b) True
12. 12.🛟 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
13. 13.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
15. 15.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a magnet (d) muddy water
17. 17.True or false: sugar from sugar water is done by filtering. (a) True (b) False
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) a funnel
20. 20.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) mud from water (c) bad grains from rice (d) chaff from wheat grain
21. 21.⚖️ 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) the same muddy water (c) the same glass (d) how clear the water is
22. 22.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) cotton or cloth
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
27. 27.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a mirror (d) a funnel
28. 28.🔮 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) no, salt passes through (d) it turns to sand
29. 29.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
30. 30.True or false: mud from water is done by evaporating. (a) True (b) False
31. 31.🫗 Which of these is done by filtering? (a) small stones from dal (b) sugar from sugar water (c) salt from sea water (d) mud from water
32. 32.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
35. 35.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
36. 36.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
37. 37.🫗 Which of these is done by winnowing? (a) salt from sea water (b) tea leaves from tea (c) sugar from sugar water (d) chaff from wheat grain
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) muddy water (d) a funnel
39. 39.🫗 How do we separate bran from wheat flour? (a) winnowing (b) handpicking (c) sieving (d) evaporating
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) muddy water (d) a mirror

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