Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 434 · 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: husk from rice grain is done by winnowing. (a) True (b) False
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
4. 4.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
6. 6.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
7. 7.⚖️ 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
8. 8.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) bad grains from rice (c) salt from sea water (d) husk from rice grain
9. 9.🧺 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) a battery cell
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) sand and pebbles (d) a balloon
11. 11.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) husk from rice grain (c) bran from wheat flour (d) bad grains from rice
12. 12.⚖️ 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 glass (c) the same funnel (d) how clear the water is
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) cotton or cloth (d) a clean glass
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
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.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
19. 19.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
21. 21.🫗 How do we separate chaff from wheat grain? (a) sieving (b) evaporating (c) winnowing (d) filtering
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a mirror (d) muddy water
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) a mirror (d) turmeric powder
25. 25.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
26. 26.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) handpicking (d) winnowing
27. 27.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) filtering
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) sand and pebbles (d) muddy water
30. 30.🫗 Which of these is done by sieving? (a) mud from water (b) sugar from sugar water (c) bran from wheat flour (d) bad grains from rice
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a mirror
32. 32.⚖️ 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 change it (c) we measure it
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
34. 34.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) evaporating (d) winnowing
37. 37.⚖️ 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) the same muddy water (c) the same funnel (d) the amount poured
38. 38.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a magnet (d) cotton or cloth
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a balloon (d) a battery cell

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