Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 870 · 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.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) sugar from sugar water (c) small stones from dal (d) salt from sea water
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
3. 3.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same muddy water (c) how clear the water is
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) muddy water (d) turmeric powder
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) muddy water (d) sand and pebbles
8. 8.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
9. 9.🔮 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) it turns to sand (d) no, salt passes through
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) sand and pebbles (d) cotton or cloth
11. 11.⚖️ 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 same funnel
12. 12.🫗 Which of these is done by sieving? (a) mud from water (b) tea leaves from tea (c) small stones from dal (d) bran from wheat flour
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) filtering (d) handpicking
15. 15.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
16. 16.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) muddy water (c) turmeric powder (d) a balloon
18. 18.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
19. 19.🫗 How do we separate gravel from fine sand? (a) sieving (b) filtering (c) handpicking (d) evaporating
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
21. 21.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
22. 22.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a balloon (d) muddy water
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) cotton or cloth
26. 26.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
27. 27.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
28. 28.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) muddy water (d) sand and pebbles
32. 32.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
34. 34.True or false: salt from sea water is done by evaporating. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) yeast (d) muddy water
39. 39.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
40. 40.🫗 How do we separate salt from sea water? (a) handpicking (b) filtering (c) winnowing (d) evaporating

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