Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 428 · 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.⚖️ 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 same muddy water (d) the filter material
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) sand and pebbles (d) a balloon
3. 3.⚖️ 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
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) how clear the water is (c) the same muddy water (d) the filter material
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
7. 7.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
9. 9.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) tea leaves from tea (d) mud from water
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) turmeric powder (d) a funnel
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) muddy water (d) a clean glass
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) muddy water (c) a funnel (d) cotton or cloth
15. 15.⚖️ 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
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
17. 17.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
18. 18.True or false: yeast is needed for the muddy water filter. (a) False (b) True
19. 19.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) evaporating (d) winnowing
20. 20.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a magnet (d) muddy water
21. 21.🫗 How do we separate bad grains from rice? (a) evaporating (b) sieving (c) handpicking (d) winnowing
22. 22.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) winnowing (d) filtering
23. 23.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
24. 24.True or false: mud from water is done by filtering. (a) False (b) True
25. 25.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
27. 27.🫗 Which of these is done by evaporating? (a) mud from water (b) gravel from fine sand (c) bad grains from rice (d) sugar from sugar water
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) yeast (d) a clean glass
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) a battery cell
30. 30.True or false: small stones from dal is done by winnowing. (a) True (b) False
31. 31.True or false: mud from water is done by evaporating. (a) True (b) False
32. 32.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
33. 33.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) yes, if it is cold (d) no, germs may stay
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
35. 35.⚖️ 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 measure it (c) we change it
36. 36.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) gravel from fine sand (c) small stones from dal (d) tea leaves from tea
37. 37.True or false: small stones from dal is done by handpicking. (a) True (b) False
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
40. 40.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) gravel from fine sand (c) husk from rice grain (d) salt from sea water

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