Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 383 · 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 done by winnowing? (a) chaff from wheat grain (b) tea leaves from tea (c) bad grains from rice (d) mud from water
2. 2.⚖️ 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
3. 3.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
4. 4.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
5. 5.⚖️ 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
6. 6.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
7. 7.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
8. 8.⚖️ 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 amount poured (d) the same glass
9. 9.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
10. 10.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
11. 11.⚖️ 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
12. 12.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
13. 13.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
15. 15.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) turmeric powder (d) sand and pebbles
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) cotton or cloth (d) a clean glass
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a magnet (d) a funnel
19. 19.True or false: gravel from fine sand is done by sieving. (a) False (b) True
20. 20.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
21. 21.True or false: turmeric powder 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) turmeric powder (b) cotton or cloth (c) a funnel (d) muddy water
23. 23.⚖️ 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) how clear the water is (c) the same funnel
24. 24.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) tea leaves from tea (c) gravel from fine sand (d) husk from rice grain
25. 25.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
26. 26.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) evaporating (d) filtering
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) muddy water (d) a balloon
28. 28.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
30. 30.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
32. 32.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) a battery cell (d) a magnet
33. 33.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
34. 34.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) small stones from dal (d) tea leaves from tea
35. 35.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
36. 36.⚖️ 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) how clear the water is (c) the same muddy water (d) the filter material
37. 37.True or false: bad grains from rice is done by filtering. (a) True (b) False
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a balloon (d) a funnel
39. 39.⚖️ 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) True (b) False
40. 40.⚖️ 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

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