Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 417 · 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: muddy water is needed for the muddy water filter. (a) True (b) False
2. 2.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) evaporating (d) filtering
3. 3.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
4. 4.🫗 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
5. 5.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) sugar from sugar water (c) small stones from dal (d) gravel from fine sand
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) yeast (d) muddy water
7. 7.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
9. 9.🔍 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
10. 10.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
11. 11.⚖️ 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 filter material (c) the same muddy water (d) the same glass
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) turmeric powder (d) muddy water
13. 13.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
15. 15.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a magnet (d) muddy water
17. 17.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) a funnel (d) sand and pebbles
20. 20.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
21. 21.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) sugar from sugar water (c) bad grains from rice (d) small stones from dal
22. 22.⚖️ 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) how clear the water is (c) the filter material (d) the same muddy water
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a magnet (d) cotton or cloth
24. 24.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
25. 25.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) small stones from dal (c) gravel from fine sand (d) husk from rice grain
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a clean glass (d) a funnel
27. 27.🫗 Which of these is done by filtering? (a) salt from sea water (b) mud from water (c) bad grains from rice (d) sugar from sugar water
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a clean glass (d) a balloon
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.True or false: tea leaves from tea is done by filtering. (a) False (b) True
31. 31.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
32. 32.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) tea leaves from tea (c) salt from sea water (d) bad grains from rice
33. 33.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
34. 34.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) winnowing (d) sieving
35. 35.True or false: bran from wheat flour is done by sieving. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) sand and pebbles (c) muddy water (d) a funnel
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
38. 38.True or false: mud from water is done by winnowing. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.True or false: yeast is needed for the muddy water filter. (a) True (b) False

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