Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 544 · 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: a balloon is needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a funnel (d) sand and pebbles
3. 3.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) salt from sea water (c) chaff from wheat grain (d) mud from water
4. 4.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) a clean glass (d) cotton or cloth
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
7. 7.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
8. 8.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
9. 9.True or false: husk from rice grain is done by handpicking. (a) True (b) False
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same glass (b) how clear the water is (c) the same funnel (d) the filter material
11. 11.⚖️ 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
12. 12.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) muddy water (d) turmeric powder
15. 15.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) filtering (d) handpicking
16. 16.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) filtering
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
18. 18.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
19. 19.🫗 Which of these is done by handpicking? (a) small stones from dal (b) tea leaves from tea (c) salt from sea water (d) bran from wheat flour
20. 20.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) a clean glass (d) muddy water
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) turmeric powder
23. 23.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
24. 24.🫗 How do we separate salt from sea water? (a) filtering (b) sieving (c) winnowing (d) evaporating
25. 25.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) filtering (d) evaporating
26. 26.⚖️ 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 measure it (c) we change it
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the amount poured (c) the filter material (d) how clear the water is
28. 28.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
30. 30.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a magnet (d) a clean glass
31. 31.⚖️ 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 glass (c) the filter material
32. 32.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
33. 33.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) yeast (d) a battery cell
34. 34.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) sieving (c) handpicking (d) winnowing
36. 36.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) small stones from dal (c) bran from wheat flour (d) bad grains from rice
37. 37.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) sugar from sugar water (d) bran from wheat flour
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
40. 40.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed

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