Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 404 · 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.🫗 How do we separate bad grains from rice? (a) filtering (b) sieving (c) handpicking (d) evaporating
2. 2.⚖️ 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 change it (c) we measure it
3. 3.⚖️ 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) False (b) True
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
5. 5.⚖️ 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 glass (c) how clear the water is (d) the same funnel
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
8. 8.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
9. 9.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a balloon (d) a funnel
11. 11.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
12. 12.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) evaporating (d) sieving
13. 13.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) salt from sea water (d) tea leaves from tea
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) sieving (d) handpicking
16. 16.🫗 Which of these is done by evaporating? (a) salt from sea water (b) chaff from wheat grain (c) tea leaves from tea (d) small stones from dal
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
18. 18.🔮 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
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a balloon (d) sand and pebbles
20. 20.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
21. 21.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
22. 22.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bran from wheat flour (c) bad grains from rice (d) chaff from wheat grain
23. 23.🧺 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 clean glass
24. 24.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
25. 25.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) bad grains from rice (c) sugar from sugar water (d) mud from water
26. 26.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
29. 29.⚖️ 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) False (b) True
30. 30.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) chaff from wheat grain (c) tea leaves from tea (d) sugar from sugar water
31. 31.⚖️ 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
32. 32.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
33. 33.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) sieving (d) handpicking
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.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) sand and pebbles (d) a magnet
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) yeast (d) sand and pebbles
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a magnet (d) a funnel
39. 39.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) muddy water (d) yeast

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