Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 666 · 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.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) cotton or cloth (d) muddy water
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a clean glass (d) a funnel
5. 5.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) a battery cell (d) yeast
7. 7.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
9. 9.🫗 Which of these is done by winnowing? (a) mud from water (b) sugar from sugar water (c) salt from sea water (d) husk from rice grain
10. 10.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
11. 11.True or false: tea leaves from tea is done by filtering. (a) False (b) True
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
13. 13.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) salt from sea water (c) husk from rice grain (d) mud from water
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) turmeric powder (d) sand and pebbles
16. 16.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) gravel from fine sand (c) chaff from wheat grain (d) small stones from dal
17. 17.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
18. 18.🛟 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
19. 19.True or false: husk from rice grain is done by sieving. (a) False (b) True
20. 20.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) husk from rice grain (c) salt from sea water (d) chaff from wheat grain
21. 21.True or false: mud from water is done by sieving. (a) True (b) False
22. 22.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a mirror (d) muddy water
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) the filter material (c) how clear the water is
28. 28.🫗 How do we separate gravel from fine sand? (a) handpicking (b) winnowing (c) evaporating (d) sieving
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) yeast (d) turmeric powder
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) a battery cell
32. 32.True or false: mud from water is done by evaporating. (a) False (b) True
33. 33.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
34. 34.⚖️ 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
35. 35.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a mirror (d) a battery cell
37. 37.⚖️ 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
38. 38.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) winnowing (d) sieving
39. 39.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
40. 40.True or false: yeast is needed for the muddy water filter. (a) False (b) True

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