Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 782 · 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 done by handpicking? (a) mud from water (b) small stones from dal (c) husk from rice grain (d) gravel from fine sand
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
3. 3.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the filter material (c) the same glass (d) the same funnel
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
7. 7.True or false: mud from water is done by filtering. (a) True (b) False
8. 8.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) salt from sea water (d) bad grains from rice
9. 9.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) bad grains from rice (c) small stones from dal (d) sugar from sugar water
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
12. 12.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) winnowing (d) filtering
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
17. 17.🫗 Which of these is done by sieving? (a) bad grains from rice (b) salt from sea water (c) husk from rice grain (d) bran from wheat flour
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) muddy water
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a balloon (c) a clean glass (d) muddy water
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.⚖️ 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 same funnel (c) the same muddy water (d) the filter material
22. 22.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.True or false: bran from wheat flour is done by sieving. (a) False (b) True
25. 25.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) winnowing (d) evaporating
26. 26.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
27. 27.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
28. 28.🫗 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
29. 29.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) yeast
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) cotton or cloth (d) a clean glass
32. 32.🫗 How do we separate gravel from fine sand? (a) winnowing (b) filtering (c) sieving (d) handpicking
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
34. 34.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a balloon (d) sand and pebbles
36. 36.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a clean glass (d) sand and pebbles
38. 38.True or false: husk from rice grain is done by winnowing. (a) False (b) True
39. 39.⚖️ 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) False (b) True
40. 40.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True

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