Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 130 · 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.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bran from wheat flour (c) chaff from wheat grain (d) sugar from sugar water
2. 2.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) evaporating (d) winnowing
6. 6.⚖️ 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 glass (d) the same funnel
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a clean glass (d) a funnel
11. 11.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
12. 12.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a mirror (d) a funnel
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) yeast
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) sand and pebbles (d) turmeric powder
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
16. 16.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) husk from rice grain (d) gravel from fine sand
17. 17.True or false: gravel from fine sand is done by sieving. (a) True (b) False
18. 18.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a mirror (d) a clean glass
20. 20.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 Which of these is done by evaporating? (a) salt from sea water (b) chaff from wheat grain (c) gravel from fine sand (d) mud from water
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 same glass (b) the filter material (c) the same funnel (d) the same muddy water
25. 25.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a funnel (d) cotton or cloth
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a funnel (d) a magnet
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a battery cell (d) cotton or cloth
29. 29.True or false: mud from water is done by filtering. (a) False (b) True
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
31. 31.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
32. 32.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
33. 33.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
34. 34.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
35. 35.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a clean glass (d) a funnel
37. 37.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) winnowing (d) filtering
38. 38.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
39. 39.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) filtering (d) evaporating
40. 40.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed

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