Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 785 · 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.⚖️ 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
2. 2.True or false: bad grains from rice is done by handpicking. (a) False (b) True
3. 3.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) husk from rice grain (c) gravel from fine sand (d) small stones from dal
4. 4.⚖️ 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 change it (c) we measure it
5. 5.True or false: sugar from sugar water is done by sieving. (a) False (b) True
6. 6.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
7. 7.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) cotton or cloth (d) turmeric powder
9. 9.🔮 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
10. 10.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
11. 11.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
12. 12.⚖️ 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 amount poured (c) the filter material
13. 13.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
14. 14.True or false: small stones from dal is done by handpicking. (a) True (b) False
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) muddy water (d) a clean glass
17. 17.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a magnet (d) sand and pebbles
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a clean glass (c) yeast (d) turmeric powder
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
21. 21.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a mirror (d) a funnel
24. 24.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bad grains from rice (c) husk from rice grain (d) tea leaves from tea
25. 25.⚖️ 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 same funnel
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) a funnel (d) muddy water
27. 27.⚖️ 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 amount poured (c) the same funnel (d) the same glass
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
29. 29.True or false: mud from water is done by winnowing. (a) False (b) True
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) evaporating (d) filtering
32. 32.⚖️ 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) False (b) True
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) turmeric powder (d) a funnel
35. 35.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
36. 36.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
40. 40.🧺 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

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