Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 624 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
2. 2.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) chaff from wheat grain (c) gravel from fine sand (d) bad grains from rice
3. 3.⚖️ 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 same glass (c) the same funnel (d) the filter material
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a magnet (d) a balloon
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same funnel (c) how clear the water is
6. 6.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
7. 7.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
8. 8.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same glass (c) how clear the water is
10. 10.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) a clean glass (d) muddy water
13. 13.⚖️ 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) False (b) True
14. 14.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) yeast (d) a funnel
17. 17.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
18. 18.🫗 How do we separate husk from rice grain? (a) winnowing (b) evaporating (c) handpicking (d) filtering
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
20. 20.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) cotton or cloth (d) muddy water
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) a funnel (d) sand and pebbles
23. 23.⚖️ 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 same muddy water (c) how clear the water is (d) the same funnel
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) a clean glass (d) turmeric powder
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) turmeric powder
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
29. 29.🫗 How do we separate small stones from dal? (a) filtering (b) handpicking (c) evaporating (d) sieving
30. 30.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) handpicking (d) filtering
31. 31.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
32. 32.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) salt from sea water (c) sugar from sugar water (d) bad grains from rice
33. 33.⚖️ 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 keep it the same (b) we measure it (c) we change it
34. 34.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a mirror (d) a clean glass
36. 36.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 How do we separate sugar from sugar water? (a) winnowing (b) handpicking (c) sieving (d) evaporating
38. 38.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it sinks to the bottom (d) it dissolves

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