Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 561 · 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.⚖️ 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
2. 2.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) winnowing (d) evaporating
3. 3.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) yeast (d) a balloon
4. 4.⚖️ 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
5. 5.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same glass
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a magnet (d) a mirror
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a funnel (d) a magnet
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) cotton or cloth (d) muddy water
12. 12.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
13. 13.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
14. 14.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
15. 15.🫗 How do we separate husk from rice grain? (a) sieving (b) filtering (c) handpicking (d) winnowing
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a battery cell (d) muddy water
17. 17.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same funnel (c) the amount poured (d) how clear the water is
20. 20.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
21. 21.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a balloon (d) muddy water
23. 23.True or false: chaff from wheat grain is done by evaporating. (a) True (b) False
24. 24.🫗 Which of these is done by evaporating? (a) salt from sea water (b) small stones from dal (c) chaff from wheat grain (d) tea leaves from tea
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a magnet (d) cotton or cloth
27. 27.True or false: mud from water is done by evaporating. (a) False (b) True
28. 28.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
29. 29.🔮 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
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a balloon (d) muddy water
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a funnel (d) a battery cell
32. 32.⚖️ 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
33. 33.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
34. 34.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) bad grains from rice (d) small stones from dal
35. 35.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
38. 38.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) yeast
40. 40.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom

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