Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 871 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
2. 2.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) turmeric powder (d) a battery cell
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) muddy water (d) a balloon
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) turmeric powder (d) a funnel
6. 6.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) a clean glass (d) cotton or cloth
9. 9.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
10. 10.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
12. 12.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a mirror (d) a funnel
14. 14.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
15. 15.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
17. 17.⚖️ 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
18. 18.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
19. 19.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) how clear the water is (c) the same funnel (d) the amount poured
21. 21.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
22. 22.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
23. 23.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
24. 24.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) sieving (d) handpicking
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
28. 28.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) gravel from fine sand (c) salt from sea water (d) mud from water
29. 29.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) bad grains from rice (d) sugar from sugar water
30. 30.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
31. 31.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) chaff from wheat grain (c) small stones from dal (d) bad grains from rice
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) a clean glass (d) cotton or cloth
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 muddy water (b) the filter material (c) how clear the water is
34. 34.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) gravel from fine sand (c) mud from water (d) sugar from sugar water
40. 40.⚖️ 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

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