Separating Mixtures Experiment Worksheet

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

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