Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 182 · 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.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
4. 4.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) evaporating (d) winnowing
5. 5.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
6. 6.⚖️ 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) the filter material (c) the amount poured (d) how clear the water is
7. 7.⚖️ 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
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a balloon (d) muddy water
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) muddy water (d) yeast
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
12. 12.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) gravel from fine sand (c) husk from rice grain (d) small stones from dal
13. 13.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
15. 15.⚖️ 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 change it (b) we keep it the same (c) we measure it
16. 16.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) winnowing (d) filtering
17. 17.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
18. 18.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) gravel from fine sand (c) mud from water (d) bad grains from rice
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it floats on top (d) it dissolves
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) a magnet (d) a clean glass
21. 21.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
22. 22.⚖️ 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
23. 23.🫗 Which of these is done by sieving? (a) small stones from dal (b) sugar from sugar water (c) husk from rice grain (d) bran from wheat flour
24. 24.⚖️ 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
25. 25.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
26. 26.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
27. 27.True or false: small stones from dal is done by sieving. (a) False (b) True
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 same glass (c) how clear the water is
29. 29.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) yeast (d) a magnet
30. 30.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
31. 31.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) sieving (d) handpicking
32. 32.⚖️ 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 same funnel (c) how clear the water is
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) filtering (d) winnowing
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) cotton or cloth (d) sand and pebbles
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a magnet
39. 39.🧺 Do we need yeast 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) sand and pebbles (b) a magnet (c) cotton or cloth (d) muddy water

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