Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 315 · 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 not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) yeast (d) cotton or cloth
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 filter material (b) the same funnel (c) the same muddy water (d) the amount poured
3. 3.⚖️ 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 glass (c) the filter material (d) how clear the water is
4. 4.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) a clean glass (d) sand and pebbles
6. 6.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) evaporating (d) handpicking
9. 9.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
10. 10.⚖️ 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
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a mirror
13. 13.⚖️ 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
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) sand and pebbles (d) a clean glass
15. 15.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
16. 16.🫗 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
17. 17.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) sugar from sugar water (d) salt from sea water
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
19. 19.True or false: salt from sea water is done by filtering. (a) True (b) False
20. 20.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) clearer (d) salty
21. 21.⚖️ 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
22. 22.⚖️ 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 change it (c) we keep it the same
23. 23.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bad grains from rice (c) sugar from sugar water (d) mud from water
24. 24.True or false: gravel from fine sand is done by sieving. (a) True (b) False
25. 25.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
26. 26.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) muddy water (d) a mirror
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
29. 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) sand and pebbles (d) a funnel
31. 31.🫗 How do we separate bran from wheat flour? (a) handpicking (b) sieving (c) evaporating (d) winnowing
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a magnet
33. 33.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, always (d) yes, if it is clear
34. 34.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
35. 35.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) bran from wheat flour (c) gravel from fine sand (d) small stones from dal
36. 36.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) handpicking (d) sieving
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) turmeric powder (d) a mirror
39. 39.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed

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