Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 480 · 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 “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ 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 glass (b) the amount poured (c) how clear the water is (d) the filter material
3. 3.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a balloon (d) a battery cell
5. 5.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
6. 6.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) it turns to sand (d) yes, all of it
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a balloon (c) a clean glass (d) cotton or cloth
9. 9.⚖️ 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 measure it (c) we change it
10. 10.⚖️ 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) True (b) False
11. 11.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
13. 13.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) muddy water (d) a clean glass
15. 15.⚖️ 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 measure it (c) we keep it the same
16. 16.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) bad grains from rice (d) gravel from fine sand
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
18. 18.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
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 hot (d) clear water is sweet
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) muddy water (d) a clean glass
22. 22.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
23. 23.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.True or false: small stones from dal is done by handpicking. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
27. 27.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
28. 28.⚖️ 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
29. 29.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
30. 30.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
31. 31.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
32. 32.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a battery cell (c) yeast (d) a balloon
34. 34.True or false: mud from water is done by evaporating. (a) True (b) False
35. 35.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
36. 36.⚖️ 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
37. 37.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: salt from sea water is done by handpicking. (a) False (b) True
39. 39.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) chaff from wheat grain (c) mud from water (d) small stones from dal
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) how clear the water is (d) the filter material

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