Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 694 · 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: turmeric powder is not needed for the muddy water filter. (a) True (b) False
2. 2.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) winnowing (d) evaporating
3. 3.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
4. 4.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
5. 5.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
6. 6.⚖️ 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
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
9. 9.🫗 Which of these is done by sieving? (a) salt from sea water (b) mud from water (c) bran from wheat flour (d) small stones from dal
10. 10.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) a battery cell (d) a balloon
11. 11.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
12. 12.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) sieving (d) handpicking
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
14. 14.True or false: bad grains from rice is done by sieving. (a) False (b) True
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) a funnel (d) cotton or cloth
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) a clean glass (d) sand and pebbles
17. 17.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
18. 18.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
21. 21.True or false: bad grains from rice is done by handpicking. (a) True (b) False
22. 22.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) filtering (d) handpicking
23. 23.⚖️ 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
24. 24.True or false: salt from sea water is done by evaporating. (a) True (b) False
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) a funnel (d) sand and pebbles
26. 26.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
27. 27.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
28. 28.⚖️ 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 filter material (c) the same funnel (d) the same muddy water
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a clean glass (c) a funnel (d) sand and pebbles
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) muddy water (c) sand and pebbles (d) cotton or cloth
31. 31.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a battery cell (d) yeast
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) yeast (d) a balloon
34. 34.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) salt from sea water (c) mud from water (d) gravel from fine sand
35. 35.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) sugar from sugar water (d) small stones from dal
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a clean glass (c) cotton or cloth (d) sand and pebbles
37. 37.⚖️ 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) True (b) False
38. 38.⚖️ 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
39. 39.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
40. 40.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True

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