Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 661 · 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: cotton or cloth is needed for the muddy water filter. (a) True (b) False
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a funnel (c) yeast (d) a balloon
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) sand and pebbles (d) muddy water
6. 6.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) a clean glass (d) cotton or cloth
8. 8.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) bran from wheat flour (c) chaff from wheat grain (d) sugar from sugar water
9. 9.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
10. 10.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
11. 11.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a magnet (d) cotton or cloth
13. 13.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
15. 15.True or false: gravel from fine sand is done by sieving. (a) False (b) True
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
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 glass (b) the filter material (c) the amount poured (d) how clear the water is
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) muddy water (d) a mirror
19. 19.🫗 Which of these is done by sieving? (a) salt from sea water (b) chaff from wheat grain (c) bran from wheat flour (d) husk from rice grain
20. 20.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) husk from rice grain (c) tea leaves from tea (d) bran from wheat flour
21. 21.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
22. 22.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
23. 23.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) evaporating (d) sieving
24. 24.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
25. 25.🫗 How do we separate bran from wheat flour? (a) evaporating (b) winnowing (c) filtering (d) sieving
26. 26.🧺 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) a battery cell
27. 27.⚖️ 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
28. 28.⚖️ 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) the same glass (c) the filter material (d) how clear the water is
29. 29.True or false: husk from rice grain is done by winnowing. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) turmeric powder (d) a clean glass
31. 31.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) sugar from sugar water (c) bran from wheat flour (d) husk from rice grain
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a funnel (d) a clean glass
37. 37.🫗 How do we separate mud from water? (a) filtering (b) sieving (c) winnowing (d) handpicking
38. 38.🔮 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
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) a mirror
40. 40.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind

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