Separating Mixtures Experiment Worksheet

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

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