Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 817 · 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.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
2. 2.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
4. 4.⚖️ 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
5. 5.⚖️ 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 funnel (d) the amount poured
6. 6.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, always (d) yes, if it is cold
7. 7.⚖️ 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
8. 8.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) gravel from fine sand (c) small stones from dal (d) husk from rice grain
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) a battery cell
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.⚖️ 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
12. 12.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
13. 13.True or false: salt from sea water is done by filtering. (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 funnel”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🫗 Which of these is done by sieving? (a) small stones from dal (b) gravel from fine sand (c) mud from water (d) sugar from sugar water
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
17. 17.⚖️ 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 glass
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a balloon (d) a clean glass
19. 19.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
22. 22.True or false: mud from water is done by filtering. (a) True (b) False
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) a funnel (d) a clean glass
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) a funnel (d) a clean glass
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
26. 26.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
27. 27.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) small stones from dal (c) salt from sea water (d) tea leaves from tea
28. 28.🫗 How do we separate mud from water? (a) filtering (b) winnowing (c) sieving (d) evaporating
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) sand and pebbles (d) yeast
30. 30.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) sand and pebbles (d) a clean glass
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a funnel (d) a balloon
34. 34.⚖️ 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) how clear the water is (c) the filter material (d) the same funnel
35. 35.🫗 How do we separate bad grains from rice? (a) handpicking (b) evaporating (c) winnowing (d) filtering
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a battery cell (d) sand and pebbles
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a balloon (d) cotton or cloth
38. 38.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: small stones from dal is done by handpicking. (a) True (b) False
40. 40.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) sieving (d) winnowing

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