Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 427 · 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 chaff from wheat grain? (a) filtering (b) evaporating (c) winnowing (d) handpicking
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a battery cell (c) a funnel (d) sand and pebbles
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a balloon
4. 4.True or false: gravel from fine sand is done by filtering. (a) False (b) True
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.True or false: bad grains from rice is done by handpicking. (a) False (b) True
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a balloon
8. 8.🛟 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
9. 9.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) cotton or cloth
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
12. 12.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
13. 13.⚖️ 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) how clear the water is (c) the filter material (d) the same muddy water
14. 14.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) mud from water (c) bad grains from rice (d) husk from rice grain
15. 15.True or false: mud from water is done by evaporating. (a) False (b) True
16. 16.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) handpicking (d) winnowing
17. 17.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) handpicking (d) filtering
18. 18.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
19. 19.🫗 Which of these is done by filtering? (a) salt from sea water (b) bran from wheat flour (c) bad grains from rice (d) mud from water
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) a magnet (d) sand and pebbles
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
25. 25.⚖️ 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
26. 26.True or false: gravel from fine sand is done by sieving. (a) True (b) False
27. 27.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) bad grains from rice (c) chaff from wheat grain (d) mud from water
28. 28.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
29. 29.⚖️ 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) True (b) False
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the mud (d) the water
31. 31.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
32. 32.🔮 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
33. 33.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
36. 36.🔮 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
37. 37.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
39. 39.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False

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