Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 253 · 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.⚖️ 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 glass
2. 2.🛟 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
3. 3.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) sand and pebbles (d) cotton or cloth
5. 5.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
7. 7.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) gravel from fine sand (c) bran from wheat flour (d) mud from water
8. 8.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
9. 9.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) yeast (d) a clean glass
11. 11.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) tea leaves from tea (d) bad grains from rice
12. 12.🫗 Which of these is done by handpicking? (a) small stones from dal (b) bran from wheat flour (c) chaff from wheat grain (d) tea leaves from tea
13. 13.🫗 Which of these is done by filtering? (a) bad grains from rice (b) small stones from dal (c) mud from water (d) salt from sea water
14. 14.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
15. 15.⚖️ 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 funnel (d) the same muddy water
16. 16.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) a funnel (d) muddy water
18. 18.🫗 Which of these is done by evaporating? (a) mud from water (b) salt from sea water (c) small stones from dal (d) bran from wheat flour
19. 19.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
20. 20.🫗 How do we separate mud from water? (a) sieving (b) evaporating (c) winnowing (d) filtering
21. 21.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
23. 23.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) winnowing (d) evaporating
24. 24.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
27. 27.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) gravel from fine sand (c) mud from water (d) salt from sea water
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
29. 29.⚖️ 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
30. 30.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) a mirror (d) sand and pebbles
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
35. 35.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) a clean glass (d) muddy water
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) cotton or cloth (d) turmeric powder
40. 40.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) winnowing (d) handpicking

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