Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 826 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
3. 3.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
4. 4.🫗 Which of these is done by handpicking? (a) mud from water (b) small stones from dal (c) sugar from sugar water (d) chaff from wheat grain
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) muddy water (d) sand and pebbles
6. 6.True or false: tea leaves from tea is done by sieving. (a) False (b) True
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a mirror
8. 8.🔮 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) it turns to sand (d) no, salt passes through
9. 9.⚖️ 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) the same muddy water (c) how clear the water is (d) the filter material
10. 10.🫗 How do we separate salt from sea water? (a) sieving (b) handpicking (c) evaporating (d) winnowing
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a clean glass (d) muddy water
13. 13.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
17. 17.⚖️ 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
18. 18.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
19. 19.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) turmeric powder (d) a funnel
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 keep it the same (b) we measure it (c) we change it
23. 23.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) muddy water (d) sand and pebbles
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) yeast (c) a funnel (d) muddy water
26. 26.True or false: bad grains from rice is done by handpicking. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.⚖️ 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
29. 29.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) turmeric powder (d) a clean glass
30. 30.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
31. 31.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) sieving (d) winnowing
32. 32.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
33. 33.🫗 Which of these is done by filtering? (a) mud from water (b) small stones from dal (c) salt from sea water (d) bad grains from rice
34. 34.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) cotton or cloth (d) a funnel
36. 36.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
38. 38.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) filtering (d) sieving
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
40. 40.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) bad grains from rice (d) small stones from dal

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