Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 85 · 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 gravel from fine sand? (a) evaporating (b) winnowing (c) filtering (d) sieving
2. 2.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) muddy water (d) a clean glass
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) sand and pebbles (d) a funnel
7. 7.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) sugar from sugar water (d) bad grains from rice
8. 8.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a funnel (d) a battery cell
10. 10.⚖️ 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
11. 11.True or false: bran from wheat flour is done by filtering. (a) True (b) False
12. 12.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
13. 13.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a balloon (d) sand and pebbles
15. 15.🫗 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
16. 16.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
17. 17.🫗 How do we separate salt from sea water? (a) winnowing (b) filtering (c) sieving (d) evaporating
18. 18.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
19. 19.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
20. 20.⚖️ 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) how clear the water is (c) the amount poured (d) the same muddy water
21. 21.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) husk from rice grain (c) salt from sea water (d) gravel from fine sand
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) cotton or cloth (d) a mirror
23. 23.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
25. 25.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
26. 26.🫗 Which of these is done by handpicking? (a) mud from water (b) salt from sea water (c) small stones from dal (d) bran from wheat flour
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
28. 28.🫗 Which of these is done by sieving? (a) salt from sea water (b) gravel from fine sand (c) tea leaves from tea (d) husk from rice grain
29. 29.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a funnel (d) a battery cell
31. 31.🧺 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) turmeric powder
32. 32.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
33. 33.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a magnet (d) a clean glass
35. 35.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
36. 36.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
37. 37.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
39. 39.True or false: salt from sea water is done by evaporating. (a) False (b) True
40. 40.⚖️ 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) True (b) False

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