Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 796 · 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: yeast is not needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a funnel (d) a mirror
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) yeast (d) muddy water
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the amount poured (c) the filter material
5. 5.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
6. 6.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) yeast (d) a battery cell
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) a funnel (d) cotton or cloth
9. 9.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
10. 10.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) winnowing (d) sieving
11. 11.🔮 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
12. 12.True or false: a magnet 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 what we measure? (a) the same funnel (b) the same glass (c) how clear the water is (d) the same muddy water
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) muddy water (d) a clean glass
15. 15.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
16. 16.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
17. 17.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) handpicking (d) winnowing
18. 18.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) evaporating (d) sieving
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 change it (b) we measure it (c) we keep it the same
20. 20.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
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 change it (b) we measure it (c) we keep it the same
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) a clean glass (d) cotton or cloth
23. 23.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
24. 24.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
25. 25.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
26. 26.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) filtering (d) sieving
27. 27.🛟 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
28. 28.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) sand and pebbles
30. 30.🔍 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
31. 31.True or false: sugar from sugar water is done by sieving. (a) True (b) False
32. 32.⚖️ 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) how clear the water is (c) the same funnel (d) the same glass
33. 33.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
34. 34.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.True or false: salt from sea water is done by handpicking. (a) True (b) False
37. 37.True or false: bad grains from rice is done by winnowing. (a) True (b) False
38. 38.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) muddy water (d) a mirror
39. 39.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
40. 40.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True

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