Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 235 · 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 funnel (b) sand and pebbles (c) a clean glass (d) a mirror
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) sand and pebbles (d) a clean glass
3. 3.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
4. 4.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) turmeric powder (d) a funnel
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) the filter material (c) how clear the water is
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) cotton or cloth (d) a funnel
9. 9.⚖️ 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 glass (c) the filter material (d) the same muddy water
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
11. 11.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
12. 12.True or false: tea leaves from tea is done by sieving. (a) False (b) True
13. 13.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
14. 14.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) filtering (d) evaporating
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
16. 16.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
17. 17.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
18. 18.🫗 How do we separate tea leaves from tea? (a) handpicking (b) evaporating (c) filtering (d) sieving
19. 19.True or false: small stones from dal is done by handpicking. (a) False (b) True
20. 20.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) sieving (d) winnowing
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) a funnel (d) sand and pebbles
23. 23.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) no, germs may stay (d) yes, always
24. 24.True or false: yeast is needed for the muddy water filter. (a) False (b) True
25. 25.🫗 Which of these is done by handpicking? (a) mud from water (b) bran from wheat flour (c) gravel from fine sand (d) bad grains from rice
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
27. 27.⚖️ 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
28. 28.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
29. 29.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) gravel from fine sand (c) bran from wheat flour (d) mud from water
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) sand and pebbles (d) muddy water
31. 31.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) winnowing
32. 32.⚖️ 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
33. 33.True or false: bad grains from rice is done by handpicking. (a) True (b) False
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
38. 38.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) no, salt passes through (d) it turns to sugar
39. 39.⚖️ 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
40. 40.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True

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