Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 605 · 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? What do we do with “how clear the water is”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.True or false: salt from sea water is done by handpicking. (a) True (b) False
3. 3.🫗 Which of these is done by sieving? (a) salt from sea water (b) bran from wheat flour (c) sugar from sugar water (d) bad grains from rice
4. 4.True or false: small stones from dal is done by handpicking. (a) False (b) True
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a mirror
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) turmeric powder (d) a battery cell
8. 8.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a battery cell
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) sand and pebbles (d) a funnel
11. 11.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
12. 12.🫗 How do we separate salt from sea water? (a) evaporating (b) sieving (c) winnowing (d) filtering
13. 13.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
14. 14.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) filtering (d) winnowing
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) a battery cell (d) a funnel
16. 16.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
17. 17.🛟 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
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
20. 20.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
21. 21.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) winnowing (d) sieving
22. 22.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
23. 23.⚖️ 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 same muddy water (c) the filter material
24. 24.⚖️ 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) how clear the water is (c) the filter material
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same muddy water (b) the filter material (c) the same funnel (d) the same glass
26. 26.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
27. 27.True or false: sugar from sugar water is done by winnowing. (a) False (b) True
28. 28.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
29. 29.🛟 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
30. 30.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) tea leaves from tea (d) small stones from dal
32. 32.🫗 Which of these is done by handpicking? (a) mud from water (b) sugar from sugar water (c) husk from rice grain (d) bad grains from rice
33. 33.True or false: mud from water is done by winnowing. (a) True (b) False
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a funnel (d) sand and pebbles
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
36. 36.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
38. 38.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) turmeric powder (d) a clean glass
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it

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