Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 164 · 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.🛟 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
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a battery cell (c) sand and pebbles (d) cotton or cloth
3. 3.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
4. 4.🫗 Which of these is done by handpicking? (a) salt from sea water (b) sugar from sugar water (c) bad grains from rice (d) tea leaves from tea
5. 5.🫗 Which of these is done by filtering? (a) salt from sea water (b) tea leaves from tea (c) chaff from wheat grain (d) husk from rice grain
6. 6.True or false: small stones from dal is done by handpicking. (a) True (b) False
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) yeast (d) a clean glass
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same funnel (c) the same glass (d) the same muddy water
9. 9.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
10. 10.True or false: muddy water is not 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 filter material (b) the same muddy water (c) the same funnel (d) the same glass
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🔮 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) no, salt passes through (d) it turns to sand
14. 14.🫗 Which of these is done by sieving? (a) mud from water (b) gravel from fine sand (c) bad grains from rice (d) chaff from wheat grain
15. 15.True or false: small stones from dal is done by sieving. (a) False (b) True
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
17. 17.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) winnowing (d) sieving
18. 18.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
19. 19.True or false: husk from rice grain is done by winnowing. (a) False (b) True
20. 20.🔮 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
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a funnel (d) yeast
22. 22.⚖️ 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
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
25. 25.⚖️ 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 filter material (c) the same muddy water
26. 26.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) a clean glass
29. 29.True or false: husk from rice grain is done by evaporating. (a) True (b) False
30. 30.🫗 Which of these is done by winnowing? (a) mud from water (b) gravel from fine sand (c) tea leaves from tea (d) husk from rice grain
31. 31.True or false: salt from sea water is done by filtering. (a) False (b) True
32. 32.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
33. 33.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
34. 34.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) a mirror (d) a funnel
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) muddy water (d) a clean glass
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) a balloon (d) muddy water
37. 37.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
38. 38.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) winnowing (d) filtering
39. 39.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) chaff from wheat grain (c) tea leaves from tea (d) salt from sea water
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) a funnel

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