Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 542 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) cotton or cloth (d) a clean glass
2. 2.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) filtering (d) sieving
3. 3.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) sand and pebbles
6. 6.⚖️ 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
7. 7.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
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 filter material (c) the same funnel
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) muddy water
10. 10.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
11. 11.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) evaporating (d) winnowing
12. 12.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
14. 14.True or false: salt from sea water is done by handpicking. (a) True (b) False
15. 15.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) filtering (d) evaporating
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
17. 17.⚖️ 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) how clear the water is (c) the filter material (d) the amount poured
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
20. 20.True or false: bran from wheat flour is done by sieving. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) muddy water (d) cotton or cloth
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) turmeric powder (d) cotton or cloth
23. 23.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
24. 24.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) no, germs may stay (d) yes, if it is cold
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) yeast (c) sand and pebbles (d) a funnel
26. 26.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
28. 28.True or false: tea leaves from tea is done by filtering. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) cotton or cloth (d) a clean glass
31. 31.🫗 Which of these is done by evaporating? (a) salt from sea water (b) husk from rice grain (c) bad grains from rice (d) small stones from dal
32. 32.True or false: tea leaves from tea is done by sieving. (a) True (b) False
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
34. 34.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
35. 35.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) cotton or cloth (d) muddy water
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) sand and pebbles (d) cotton or cloth
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a magnet (c) muddy water (d) sand and pebbles
40. 40.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) evaporating (d) filtering

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