Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 206 · 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.🛟 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
2. 2.⚖️ 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
3. 3.🫗 How do we separate small stones from dal? (a) winnowing (b) filtering (c) sieving (d) handpicking
4. 4.🫗 Which of these is done by handpicking? (a) mud from water (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
7. 7.🛟 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
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a funnel (c) cotton or cloth (d) sand and pebbles
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a magnet
11. 11.🔮 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
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a magnet
13. 13.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
14. 14.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) handpicking (d) winnowing
17. 17.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
18. 18.⚖️ 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
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
23. 23.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ 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 glass (c) the same muddy water (d) how clear the water is
25. 25.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) handpicking (d) evaporating
26. 26.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
27. 27.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a battery cell (d) yeast
28. 28.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it dissolves (d) it sinks to the bottom
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) yeast
30. 30.⚖️ 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
31. 31.True or false: salt from sea water is done by evaporating. (a) True (b) False
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
33. 33.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) sieving (d) winnowing
34. 34.⚖️ 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 funnel
35. 35.⚖️ 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) False (b) True
36. 36.⚖️ 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) False (b) True
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) cotton or cloth
39. 39.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) muddy water (d) a funnel

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