Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 934 · 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 small stones from dal? (a) handpicking (b) sieving (c) filtering (d) winnowing
2. 2.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same glass (c) how clear the water is (d) the filter material
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a mirror
5. 5.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bran from wheat flour (c) bad grains from rice (d) sugar from sugar water
6. 6.🫗 Which of these is done by sieving? (a) bad grains from rice (b) chaff from wheat grain (c) husk from rice grain (d) bran from wheat flour
7. 7.⚖️ 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
8. 8.True or false: husk from rice grain is done by winnowing. (a) True (b) False
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
10. 10.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
11. 11.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
12. 12.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) filtering (c) evaporating (d) winnowing
13. 13.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) a magnet
15. 15.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a magnet (d) sand and pebbles
16. 16.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
18. 18.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter traps mud (d) the filter adds soap
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) a balloon
20. 20.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) sand and pebbles (d) cotton or cloth
22. 22.True or false: husk from rice grain is done by sieving. (a) True (b) False
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) sand and pebbles (d) a funnel
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
25. 25.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
26. 26.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bad grains from rice (c) mud from water (d) bran from wheat flour
27. 27.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) tea leaves from tea (c) chaff from wheat grain (d) sugar from sugar water
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) a clean glass (d) cotton or cloth
29. 29.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) husk from rice grain (d) sugar from sugar water
30. 30.⚖️ 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) True (b) False
31. 31.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
32. 32.🫗 How do we separate mud from water? (a) sieving (b) filtering (c) evaporating (d) handpicking
33. 33.True or false: husk from rice grain is done by evaporating. (a) True (b) False
34. 34.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a balloon (d) a funnel
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.True or false: bran from wheat flour is done by sieving. (a) False (b) True
37. 37.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) cotton or cloth (d) a battery cell
39. 39.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) filtering (d) evaporating
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed

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