Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 356 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
2. 2.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) filtering (c) winnowing (d) sieving
3. 3.True or false: mud from water is done by filtering. (a) True (b) False
4. 4.⚖️ 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) False (b) True
5. 5.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a mirror (d) cotton or cloth
8. 8.⚖️ 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 same glass
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a magnet
10. 10.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) gravel from fine sand (c) small stones from dal (d) chaff from wheat grain
11. 11.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) evaporating (d) filtering
12. 12.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
13. 13.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a battery cell (d) a mirror
14. 14.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) filtering (d) handpicking
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
17. 17.⚖️ 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 measure it (b) we keep it the same (c) we change it
18. 18.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
19. 19.⚖️ 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 muddy water (c) the filter material
20. 20.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
21. 21.True or false: tea leaves from tea is done by filtering. (a) True (b) False
22. 22.🫗 How do we separate bad grains from rice? (a) sieving (b) winnowing (c) filtering (d) handpicking
23. 23.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
24. 24.⚖️ 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 filter material (d) the same muddy water
25. 25.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
26. 26.⚖️ 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) False (b) True
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a clean glass (d) muddy water
30. 30.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the filter material (c) the same funnel (d) the amount poured
32. 32.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
33. 33.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
34. 34.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) a magnet (d) a mirror
35. 35.True or false: mud from water is done by sieving. (a) False (b) True
36. 36.⚖️ 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 measure it (c) we change it
37. 37.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) sieving (d) handpicking
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) muddy water (d) a funnel

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