Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 211 · 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.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) muddy water (c) sand and pebbles (d) a funnel
2. 2.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) sieving (d) handpicking
3. 3.⚖️ 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 measure it (c) we change it
4. 4.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
5. 5.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
8. 8.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a funnel (c) cotton or cloth (d) muddy water
10. 10.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) turmeric powder
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same glass (d) the same muddy water
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) yeast (d) cotton or cloth
14. 14.🫗 Which of these is done by filtering? (a) salt from sea water (b) mud from water (c) chaff from wheat grain (d) husk from rice grain
15. 15.True or false: tea leaves from tea is done by filtering. (a) True (b) False
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
17. 17.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) tea leaves from tea (c) chaff from wheat grain (d) small stones from dal
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) how clear the water is (d) the same glass
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) sand and pebbles (d) cotton or cloth
20. 20.🔮 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
21. 21.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) gravel from fine sand (c) tea leaves from tea (d) husk from rice grain
22. 22.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
25. 25.True or false: mud from water is done by sieving. (a) False (b) True
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a magnet (d) cotton or cloth
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
30. 30.🫗 How do we separate gravel from fine sand? (a) filtering (b) evaporating (c) sieving (d) handpicking
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same muddy water
32. 32.⚖️ 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
33. 33.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) winnowing (d) handpicking
35. 35.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) turmeric powder (d) yeast
37. 37.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) cotton or cloth (d) a clean glass
39. 39.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) mud from water (c) husk from rice grain (d) bran from wheat flour
40. 40.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False

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