Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 547 · 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: gravel from fine sand is done by handpicking. (a) True (b) False
2. 2.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
4. 4.True or false: husk from rice grain is done by winnowing. (a) True (b) False
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a balloon (d) a funnel
7. 7.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) evaporating (d) filtering
8. 8.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
9. 9.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) chaff from wheat grain (d) small stones from dal
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a magnet (d) a clean glass
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a battery cell (d) cotton or cloth
13. 13.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) sieving (d) winnowing
14. 14.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) gravel from fine sand (c) tea leaves from tea (d) husk from rice grain
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
19. 19.🛟 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
20. 20.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) a clean glass (d) a mirror
22. 22.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
23. 23.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
24. 24.True or false: husk from rice grain is done by evaporating. (a) False (b) True
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) sand and pebbles (d) muddy water
26. 26.⚖️ 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 filter material (c) the same muddy water (d) how clear the water is
27. 27.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) winnowing (d) sieving
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
29. 29.⚖️ 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 muddy water
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) sand and pebbles (d) cotton or cloth
31. 31.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) cotton or cloth (d) a magnet
32. 32.🫗 Which of these is done by filtering? (a) salt from sea water (b) husk from rice grain (c) bran from wheat flour (d) mud from water
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
34. 34.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) turmeric powder
36. 36.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bran from wheat flour (c) salt from sea water (d) mud from water
37. 37.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
39. 39.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) sieving (d) handpicking
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a balloon (d) sand and pebbles

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