Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 147 · 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) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
2. 2.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) filtering (d) handpicking
3. 3.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
4. 4.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) a mirror
7. 7.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
8. 8.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
9. 9.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) turmeric powder (d) a funnel
11. 11.⚖️ 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
12. 12.🫗 Which of these is done by evaporating? (a) salt from sea water (b) mud from water (c) small stones from dal (d) tea leaves from tea
13. 13.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a balloon
15. 15.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) muddy water (d) a battery cell
16. 16.🫗 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
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) yeast (d) muddy water
19. 19.True or false: bad grains from rice is done by handpicking. (a) False (b) True
20. 20.True or false: small stones from dal is done by handpicking. (a) True (b) False
21. 21.⚖️ 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) False (b) True
22. 22.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
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 amount poured (b) the same muddy water (c) the same funnel (d) the filter material
24. 24.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) salt from sea water (c) bran from wheat flour (d) small stones from dal
25. 25.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) sieving (d) handpicking
26. 26.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
27. 27.⚖️ 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 same funnel (c) the filter material
28. 28.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bad grains from rice (c) bran from wheat flour (d) tea leaves from tea
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a clean glass (d) sand and pebbles
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) a funnel
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) turmeric powder (d) a magnet
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a clean glass (d) muddy water
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) muddy water (d) cotton or cloth
34. 34.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
35. 35.True or false: husk from rice grain is done by winnowing. (a) True (b) False
36. 36.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
37. 37.🫗 Which of these is done by filtering? (a) small stones from dal (b) sugar from sugar water (c) mud from water (d) gravel from fine sand
38. 38.⚖️ 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) how clear the water is (d) the same muddy water
39. 39.⚖️ 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
40. 40.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed

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