Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 127 · 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? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.True or false: tea leaves from tea is done by filtering. (a) True (b) False
3. 3.⚖️ 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
4. 4.True or false: yeast is needed for the muddy water filter. (a) False (b) True
5. 5.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
6. 6.⚖️ 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 same muddy water (d) the amount poured
7. 7.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bran from wheat flour (c) small stones from dal (d) bad grains from rice
8. 8.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) a magnet (d) sand and pebbles
10. 10.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) bad grains from rice (c) tea leaves from tea (d) small stones from dal
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) the amount poured (d) how clear the water is
12. 12.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
13. 13.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
14. 14.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) sieving (d) evaporating
15. 15.🫗 Which of these is done by filtering? (a) salt from sea water (b) tea leaves from tea (c) small stones from dal (d) gravel from fine sand
16. 16.⚖️ 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) the same funnel (c) how clear the water is
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) a funnel (d) muddy water
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it turns to sand (d) it floats on top
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a magnet (d) turmeric powder
20. 20.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) sugar from sugar water (c) bran from wheat flour (d) small stones from dal
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) yeast
22. 22.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
23. 23.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) a magnet
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) a mirror
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a balloon
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
29. 29.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) muddy water (d) turmeric powder
31. 31.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) turmeric powder
33. 33.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
34. 34.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
35. 35.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
36. 36.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
37. 37.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.⚖️ 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

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