Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 292 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) a funnel (d) cotton or cloth
2. 2.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) handpicking (d) winnowing
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a magnet (d) a clean glass
4. 4.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
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) the amount poured (b) the same muddy water (c) the filter material (d) how clear the water is
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
8. 8.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) evaporating
9. 9.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a clean glass (d) cotton or cloth
11. 11.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
12. 12.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
13. 13.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) sugar from sugar water (c) gravel from fine sand (d) bad grains from rice
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) cotton or cloth (d) muddy water
15. 15.⚖️ 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
16. 16.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
17. 17.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
18. 18.⚖️ 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
19. 19.True or false: gravel from fine sand is done by sieving. (a) True (b) False
20. 20.True or false: small stones from dal is done by filtering. (a) False (b) True
21. 21.⚖️ 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 muddy water (c) the filter material
22. 22.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
23. 23.🫗 Which of these is done by handpicking? (a) small stones from dal (b) tea leaves from tea (c) bran from wheat flour (d) salt from sea water
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
25. 25.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a magnet (d) a funnel
27. 27.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a funnel (d) a balloon
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) cotton or cloth (d) a clean glass
30. 30.True or false: sugar from sugar water is done by sieving. (a) False (b) True
31. 31.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
32. 32.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) tea leaves from tea (c) bad grains from rice (d) chaff from wheat grain
33. 33.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
34. 34.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
35. 35.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) winnowing (d) filtering
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
38. 38.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) sand and pebbles (c) a clean glass (d) a funnel

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