Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 519 · 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: a clean glass is not needed for the muddy water filter. (a) True (b) False
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
3. 3.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) yeast (d) a balloon
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) a mirror (d) a balloon
5. 5.🫗 Which of these is done by filtering? (a) small stones from dal (b) chaff from wheat grain (c) mud from water (d) salt from sea water
6. 6.⚖️ 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) False (b) True
7. 7.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) mud from water (c) salt from sea water (d) gravel from fine sand
8. 8.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) yes, all of it (d) it turns to sand
9. 9.True or false: mud from water is done by winnowing. (a) False (b) True
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) sand and pebbles (d) a balloon
11. 11.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
13. 13.⚖️ 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 same funnel (c) the same glass (d) the filter material
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) a mirror
15. 15.🔮 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
16. 16.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a magnet (d) a clean glass
18. 18.True or false: bad grains from rice is done by evaporating. (a) False (b) True
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a balloon (d) a funnel
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a battery cell (d) muddy water
22. 22.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a mirror
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) a balloon (d) a clean glass
25. 25.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bran from wheat flour (c) mud from water (d) tea leaves from tea
26. 26.True or false: bran from wheat flour is done by sieving. (a) False (b) True
27. 27.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
28. 28.⚖️ 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
29. 29.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
30. 30.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) small stones from dal (c) bad grains from rice (d) chaff from wheat grain
31. 31.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
33. 33.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) husk from rice grain (c) small stones from dal (d) tea leaves from tea
34. 34.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the amount poured (d) the filter material
36. 36.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
37. 37.True or false: tea leaves from tea is done by filtering. (a) True (b) False
38. 38.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
40. 40.True or false: muddy water is needed for the muddy water filter. (a) False (b) True

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