Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 324 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the amount poured (d) how clear the water is
3. 3.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a battery cell (d) a mirror
5. 5.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
6. 6.🫗 Which of these is done by sieving? (a) husk from rice grain (b) tea leaves from tea (c) sugar from sugar water (d) gravel from fine sand
7. 7.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
8. 8.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
9. 9.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
10. 10.⚖️ 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
11. 11.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
12. 12.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
13. 13.True or false: salt from sea water is done by handpicking. (a) True (b) False
14. 14.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
15. 15.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) bran from wheat flour (c) gravel from fine sand (d) husk from rice grain
16. 16.⚖️ 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) the filter material (c) how clear the water is
17. 17.⚖️ 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
18. 18.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
19. 19.True or false: yeast is needed for the muddy water filter. (a) True (b) False
20. 20.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) sand and pebbles (d) cotton or cloth
23. 23.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
24. 24.True or false: bad grains from rice is done by sieving. (a) False (b) True
25. 25.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) handpicking (d) filtering
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
29. 29.🫗 How do we separate mud from water? (a) filtering (b) winnowing (c) sieving (d) handpicking
30. 30.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) sieving (d) handpicking
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) muddy water (c) turmeric powder (d) a mirror
32. 32.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) evaporating (d) sieving
33. 33.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) turmeric powder
35. 35.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
36. 36.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) gravel from fine sand (c) bran from wheat flour (d) husk from rice grain
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) sand and pebbles (d) a funnel
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
40. 40.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False

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