Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 384 · 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? Which of these is what we measure? (a) the same glass (b) the filter material (c) the amount poured (d) how clear the water is
2. 2.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
3. 3.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) filtering (d) winnowing
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
5. 5.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
6. 6.True or false: small stones from dal is done by handpicking. (a) True (b) False
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the amount poured (c) the same glass (d) the filter material
9. 9.🔮 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
10. 10.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
11. 11.True or false: bad grains from rice is done by handpicking. (a) False (b) True
12. 12.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) winnowing (d) evaporating
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a clean glass (d) a magnet
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a battery cell (d) muddy water
19. 19.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
21. 21.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
24. 24.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) the filter material (c) how clear the water is
26. 26.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
27. 27.🫗 Which of these is done by sieving? (a) mud from water (b) gravel from fine sand (c) husk from rice grain (d) chaff from wheat grain
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a balloon (c) cotton or cloth (d) muddy water
29. 29.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
30. 30.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
31. 31.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) a battery cell (d) turmeric powder
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) cotton or cloth (d) a mirror
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
35. 35.⚖️ 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
36. 36.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
37. 37.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ 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
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
40. 40.⚖️ 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) False (b) True

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