Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 538 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
2. 2.🫗 How do we separate husk from rice grain? (a) winnowing (b) handpicking (c) sieving (d) evaporating
3. 3.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) gravel from fine sand (c) tea leaves from tea (d) bad grains from rice
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) a battery cell
5. 5.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a battery cell (d) cotton or cloth
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a mirror (d) a funnel
8. 8.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
9. 9.True or false: small stones from dal is done by evaporating. (a) False (b) True
10. 10.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
11. 11.True or false: bran from wheat flour is done by sieving. (a) True (b) False
12. 12.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
13. 13.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) sand and pebbles (d) turmeric powder
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) a funnel (d) a magnet
15. 15.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
16. 16.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
17. 17.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
18. 18.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
20. 20.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
21. 21.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
22. 22.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
23. 23.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
24. 24.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
25. 25.⚖️ 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 measure it (c) we change it
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a magnet
27. 27.🫗 How do we separate bad grains from rice? (a) handpicking (b) winnowing (c) evaporating (d) sieving
28. 28.⚖️ 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
29. 29.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ 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 muddy water (c) the amount poured (d) the same funnel
31. 31.⚖️ 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
32. 32.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) handpicking (d) filtering
33. 33.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) gravel from fine sand (c) tea leaves from tea (d) small stones from dal
34. 34.True or false: sugar from sugar water is done by sieving. (a) True (b) False
35. 35.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
36. 36.🫗 How do we separate sugar from sugar water? (a) winnowing (b) sieving (c) evaporating (d) filtering
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
38. 38.True or false: tea leaves from tea is done by filtering. (a) True (b) False
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) turmeric powder (d) sand and pebbles

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