Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 197 · 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) sand and pebbles (b) a funnel (c) a magnet (d) muddy water
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) yeast (d) muddy water
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
6. 6.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) tea stays behind (d) leaves stay behind
7. 7.⚖️ 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) the same funnel (c) the amount poured (d) how clear the water is
8. 8.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
9. 9.🫗 Which of these is done by filtering? (a) mud from water (b) husk from rice grain (c) gravel from fine sand (d) chaff from wheat grain
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
13. 13.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
15. 15.⚖️ 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
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a magnet (d) a balloon
17. 17.⚖️ 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
18. 18.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
19. 19.⚖️ 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
20. 20.True or false: husk from rice grain is done by evaporating. (a) True (b) False
21. 21.🫗 Which of these is done by sieving? (a) husk from rice grain (b) bran from wheat flour (c) bad grains from rice (d) chaff from wheat grain
22. 22.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) sand and pebbles (d) a funnel
24. 24.🫗 How do we separate gravel from fine sand? (a) filtering (b) sieving (c) handpicking (d) evaporating
25. 25.🫗 Which of these is done by sieving? (a) mud from water (b) sugar from sugar water (c) small stones from dal (d) gravel from fine sand
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) sand and pebbles (c) muddy water (d) a funnel
27. 27.⚖️ 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) the amount poured (c) how clear the water is
28. 28.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) sand and pebbles (d) a clean glass
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 How do we separate husk from rice grain? (a) sieving (b) filtering (c) evaporating (d) winnowing
32. 32.🫗 How do we separate salt from sea water? (a) evaporating (b) sieving (c) filtering (d) winnowing
33. 33.True or false: tea leaves from tea is done by filtering. (a) True (b) False
34. 34.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
35. 35.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) tea leaves from tea (c) husk from rice grain (d) bran from wheat flour
36. 36.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
37. 37.⚖️ 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
38. 38.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) handpicking (d) sieving
39. 39.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
40. 40.⚖️ 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) how clear the water is (c) the same funnel (d) the amount poured

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