Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 337 · 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 funnel is needed for the muddy water filter. (a) True (b) False
2. 2.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
3. 3.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) winnowing (d) evaporating
4. 4.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
5. 5.⚖️ 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
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 measure it (b) we keep it the same (c) we change it
7. 7.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
8. 8.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
9. 9.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) a balloon (d) a magnet
10. 10.🫗 Which of these is done by winnowing? (a) small stones from dal (b) chaff from wheat grain (c) bran from wheat flour (d) tea leaves from tea
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) muddy water (d) a funnel
12. 12.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) bran from wheat flour (c) chaff from wheat grain (d) salt from sea water
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) gravel from fine sand (c) bran from wheat flour (d) mud from water
16. 16.⚖️ 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) how clear the water is (d) the amount poured
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) the filter material (d) how clear the water is
18. 18.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a funnel (d) a battery cell
20. 20.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bad grains from rice (c) husk from rice grain (d) mud from water
21. 21.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a balloon (d) yeast
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a clean glass (d) yeast
24. 24.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) evaporating (d) filtering
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a magnet
26. 26.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
28. 28.🫗 Which of these is done by handpicking? (a) small stones from dal (b) chaff from wheat grain (c) sugar from sugar water (d) salt from sea water
29. 29.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) sieving (d) winnowing
30. 30.⚖️ 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
31. 31.⚖️ 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) True (b) False
32. 32.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
35. 35.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
36. 36.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
37. 37.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
38. 38.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) sugar from sugar water (c) bran from wheat flour (d) bad grains from rice
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
40. 40.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea

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