Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 19 · 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.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) yeast (d) cotton or cloth
2. 2.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) gravel from fine sand (c) bad grains from rice (d) bran from wheat flour
3. 3.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) bad grains from rice (c) sugar from sugar water (d) salt from sea water
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) turmeric powder (d) a funnel
6. 6.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a balloon (d) a clean glass
7. 7.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
8. 8.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the filter material (c) how clear the water is (d) the same glass
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a magnet (c) muddy water (d) cotton or cloth
11. 11.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) sieving (d) evaporating
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) a magnet
13. 13.⚖️ 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
14. 14.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) sieving (d) filtering
15. 15.🫗 Which of these is done by handpicking? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) salt from sea water
16. 16.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
18. 18.⚖️ 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 muddy water (b) how clear the water is (c) the amount poured (d) the filter material
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) muddy water (d) cotton or cloth
21. 21.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
23. 23.🫗 How do we separate gravel from fine sand? (a) handpicking (b) evaporating (c) filtering (d) sieving
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
26. 26.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) handpicking (d) evaporating
27. 27.⚖️ 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 same glass (c) the filter material
28. 28.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) a balloon (d) yeast
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) a balloon
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.⚖️ 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) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
34. 34.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
35. 35.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
37. 37.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) muddy water (d) yeast
40. 40.True or false: small stones from dal is done by filtering. (a) False (b) True

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