Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 246 · 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? Which of these is what we measure? (a) the same glass (b) the filter material (c) the same muddy water (d) how clear the water is
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) muddy water
3. 3.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
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.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) sugar from sugar water (c) salt from sea water (d) bran from wheat flour
6. 6.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
7. 7.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
8. 8.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) cotton or cloth (d) a battery cell
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) muddy water (c) a balloon (d) a magnet
11. 11.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
12. 12.🫗 Which of these is done by filtering? (a) husk from rice grain (b) chaff from wheat grain (c) small stones from dal (d) mud from water
13. 13.🫗 How do we separate tea leaves from tea? (a) sieving (b) filtering (c) winnowing (d) evaporating
14. 14.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
15. 15.True or false: bran from wheat flour is done by evaporating. (a) False (b) True
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
17. 17.🫗 Which of these is done by winnowing? (a) mud from water (b) chaff from wheat grain (c) gravel from fine sand (d) tea leaves from tea
18. 18.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
19. 19.⚖️ 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
20. 20.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
21. 21.🫗 How do we separate gravel from fine sand? (a) handpicking (b) evaporating (c) sieving (d) winnowing
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) a clean glass (d) cotton or cloth
23. 23.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) salt from sea water (c) chaff from wheat grain (d) husk from rice grain
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a clean glass (d) muddy water
27. 27.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (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 glass (c) the amount poured (d) the same funnel
31. 31.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
32. 32.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
33. 33.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
34. 34.⚖️ 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
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a magnet
37. 37.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) a mirror (d) cotton or cloth
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we change it (b) we keep it the same (c) we measure it

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