Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 406 · 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: husk from rice grain is done by sieving. (a) True (b) False
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a mirror (d) a funnel
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same funnel (d) the amount poured
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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) the same glass (d) how clear the water is
6. 6.True or false: bran from wheat flour is done by sieving. (a) False (b) True
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) sand and pebbles (d) cotton or cloth
8. 8.🫗 Which of these is done by handpicking? (a) small stones from dal (b) salt from sea water (c) bran from wheat flour (d) tea leaves from tea
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
14. 14.🔮 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) yes, all of it (d) it turns to sugar
15. 15.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) chaff from wheat grain (d) husk from rice grain
16. 16.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) sand and pebbles (d) a clean glass
18. 18.True or false: gravel from fine sand is done by filtering. (a) False (b) True
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a clean glass (d) a funnel
20. 20.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) sugar from sugar water (c) tea leaves from tea (d) bad grains from rice
21. 21.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
22. 22.⚖️ 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
23. 23.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) tea leaves from tea (c) husk from rice grain (d) chaff from wheat grain
24. 24.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bran from wheat flour (c) tea leaves from tea (d) husk from rice grain
25. 25.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
26. 26.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the filter adds soap (d) the mud dissolves
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) a funnel
28. 28.🫗 How do we separate small stones from dal? (a) sieving (b) evaporating (c) winnowing (d) handpicking
29. 29.🫗 Which of these is done by sieving? (a) salt from sea water (b) tea leaves from tea (c) bran from wheat flour (d) chaff from wheat grain
30. 30.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) winnowing (d) sieving
31. 31.⚖️ 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
32. 32.🫗 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
33. 33.🧺 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) sand and pebbles
34. 34.⚖️ 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 amount poured
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a magnet (d) muddy water
36. 36.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
37. 37.⚖️ 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) 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 muddy water”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) turmeric powder
40. 40.True or false: tea leaves from tea is done by filtering. (a) True (b) False

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