Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 469 · 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.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the filter adds soap (d) the mud dissolves
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) a mirror
4. 4.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
6. 6.⚖️ 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 funnel
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) yeast (d) a mirror
8. 8.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
9. 9.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
10. 10.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
11. 11.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) evaporating (d) winnowing
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) bad grains from rice (d) small stones from dal
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) the same muddy water (d) how clear the water is
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) cotton or cloth
17. 17.True or false: husk from rice grain is done by winnowing. (a) True (b) False
18. 18.⚖️ 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
19. 19.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
20. 20.🫗 Which of these is done by evaporating? (a) salt from sea water (b) small stones from dal (c) chaff from wheat grain (d) gravel from fine sand
21. 21.🫗 Which of these is done by filtering? (a) bad grains from rice (b) tea leaves from tea (c) small stones from dal (d) sugar from sugar water
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a magnet
23. 23.⚖️ 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) how clear the water is (c) the amount poured (d) the same glass
24. 24.⚖️ 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
25. 25.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea
26. 26.True or false: small stones from dal is done by handpicking. (a) True (b) False
27. 27.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) husk from rice grain (d) sugar from sugar water
28. 28.🫗 How do we separate salt from sea water? (a) winnowing (b) filtering (c) evaporating (d) sieving
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
30. 30.🫗 How do we separate gravel from fine sand? (a) winnowing (b) filtering (c) handpicking (d) sieving
31. 31.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
33. 33.🫗 How do we separate tea leaves from tea? (a) handpicking (b) sieving (c) filtering (d) winnowing
34. 34.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) muddy water (c) turmeric powder (d) a balloon
36. 36.⚖️ 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
37. 37.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it turns to sand (d) it floats on top
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) yeast (d) sand and pebbles
39. 39.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) cotton or cloth (d) a mirror

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