Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 278 · 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.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) handpicking (d) winnowing
2. 2.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) yeast (d) cotton or cloth
4. 4.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) winnowing
5. 5.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) turmeric powder (d) a magnet
6. 6.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
8. 8.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a battery cell (d) a funnel
10. 10.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
11. 11.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
12. 12.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) handpicking (d) filtering
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same glass (c) the amount poured (d) how clear the water is
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🫗 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
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
18. 18.True or false: salt from sea water is done by evaporating. (a) False (b) True
19. 19.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a magnet (d) a funnel
21. 21.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) gravel from fine sand (c) bran from wheat flour (d) tea leaves from tea
22. 22.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
23. 23.🔍 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 sinks to the bottom (d) it dissolves
24. 24.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
25. 25.True or false: tea leaves from tea is done by filtering. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) turmeric powder (d) cotton or cloth
28. 28.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
29. 29.⚖️ 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 glass (d) the same funnel
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
31. 31.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
32. 32.True or false: mud from water is done by filtering. (a) True (b) False
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) a clean glass (d) muddy water
34. 34.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
35. 35.True or false: bran from wheat flour is done by sieving. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a balloon (d) a clean glass
37. 37.⚖️ 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
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a funnel (c) sand and pebbles (d) muddy water
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
40. 40.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud

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