Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 104 · 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.🫗 How do we separate mud from water? (a) sieving (b) evaporating (c) filtering (d) winnowing
2. 2.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a clean glass (d) a battery cell
4. 4.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a magnet (d) a clean glass
6. 6.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
7. 7.⚖️ 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) True (b) False
8. 8.⚖️ 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
9. 9.True or false: small stones from dal is done by handpicking. (a) False (b) True
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
12. 12.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
13. 13.True or false: tea leaves from tea is done by filtering. (a) False (b) True
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
15. 15.True or false: mud from water is done by handpicking. (a) False (b) True
16. 16.🫗 How do we separate gravel from fine sand? (a) winnowing (b) evaporating (c) sieving (d) handpicking
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) muddy water (d) a funnel
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
19. 19.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) handpicking (d) filtering
20. 20.⚖️ 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
21. 21.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bran from wheat flour (c) mud from water (d) small stones from dal
22. 22.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a battery cell (d) muddy water
24. 24.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
25. 25.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) small stones from dal (c) gravel from fine sand (d) husk from rice grain
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.⚖️ 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 funnel (b) the filter material (c) the amount poured (d) the same muddy water
28. 28.🫗 Which of these is done by evaporating? (a) small stones from dal (b) chaff from wheat grain (c) mud from water (d) sugar from sugar water
29. 29.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
30. 30.True or false: salt from sea water is done by filtering. (a) True (b) False
31. 31.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
32. 32.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) sand and pebbles (d) muddy water
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a balloon (d) cotton or cloth
35. 35.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a magnet (d) yeast
36. 36.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) turmeric powder (d) a magnet
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🧺 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
40. 40.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False

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