Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 485 · 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 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
2. 2.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) mud from water (c) salt from sea water (d) sugar from sugar water
3. 3.🫗 Which of these is done by sieving? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) bran from wheat flour
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) a magnet (d) a mirror
5. 5.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) filtering (d) winnowing
6. 6.⚖️ 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
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) sand and pebbles (d) yeast
9. 9.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) evaporating (d) sieving
10. 10.⚖️ 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 glass
11. 11.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
12. 12.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) handpicking (d) filtering
13. 13.🛟 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
14. 14.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) filtering (d) evaporating
15. 15.🫗 Which of these is done by evaporating? (a) salt from sea water (b) tea leaves from tea (c) bad grains from rice (d) small stones from dal
16. 16.True or false: mud from water is done by filtering. (a) False (b) True
17. 17.⚖️ 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
18. 18.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.True or false: small stones from dal is done by winnowing. (a) True (b) False
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) muddy water (d) a funnel
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a balloon
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
27. 27.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
28. 28.⚖️ 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) the amount poured (c) how clear the water is
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
31. 31.⚖️ 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 funnel (b) the same glass (c) the amount poured (d) the filter material
32. 32.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) chaff from wheat grain (c) sugar from sugar water (d) small stones from dal
33. 33.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
35. 35.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
38. 38.⚖️ 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
39. 39.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
40. 40.True or false: tea leaves from tea is done by filtering. (a) False (b) True

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