Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 761 · 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.True or false: gravel from fine sand is done by sieving. (a) True (b) False
2. 2.🔮 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
3. 3.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
4. 4.⚖️ 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 change it (c) we measure it
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) handpicking (d) sieving
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
8. 8.⚖️ 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 funnel (c) the filter material
9. 9.True or false: mud from water is done by winnowing. (a) True (b) False
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) a mirror
11. 11.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) sieving (d) winnowing
12. 12.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) filtering (d) handpicking
13. 13.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
14. 14.⚖️ 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) the filter material (c) the same muddy water (d) the same funnel
15. 15.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
16. 16.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) small stones from dal (c) sugar from sugar water (d) husk from rice grain
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) sand and pebbles (d) a funnel
18. 18.True or false: salt from sea water is done by evaporating. (a) False (b) True
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
20. 20.⚖️ 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
21. 21.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
22. 22.🫗 How do we separate bad grains from rice? (a) handpicking (b) sieving (c) evaporating (d) filtering
23. 23.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
25. 25.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) muddy water (d) a balloon
26. 26.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) evaporating (d) winnowing
27. 27.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 Which of these is done by sieving? (a) salt from sea water (b) chaff from wheat grain (c) gravel from fine sand (d) mud from water
29. 29.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
30. 30.True or false: small stones from dal is done by evaporating. (a) False (b) True
31. 31.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
32. 32.True or false: tea leaves from tea is done by filtering. (a) False (b) True
33. 33.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) bad grains from rice (c) husk from rice grain (d) sugar from sugar water
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a funnel (d) a clean glass
35. 35.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
36. 36.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
37. 37.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) turmeric powder
39. 39.True or false: yeast is needed for the muddy water filter. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False

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