Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 386 · 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 the one thing we change? (a) the same funnel (b) the amount poured (c) the filter material (d) how clear the water is
2. 2.True or false: gravel from fine sand is done by sieving. (a) False (b) True
3. 3.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) filtering (d) handpicking
4. 4.⚖️ 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) False (b) True
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a magnet
6. 6.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
7. 7.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) handpicking (d) sieving
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a mirror (d) a funnel
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
10. 10.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) yes, if it is clear (d) no, germs may stay
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) cotton or cloth (d) a funnel
12. 12.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
13. 13.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
14. 14.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
15. 15.True or false: bad grains from rice is done by winnowing. (a) True (b) False
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a funnel (d) a mirror
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
18. 18.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
19. 19.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) muddy water (d) turmeric powder
21. 21.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
22. 22.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
23. 23.True or false: husk from rice grain is done by filtering. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) sand and pebbles (c) muddy water (d) a clean glass
25. 25.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
26. 26.🛟 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
27. 27.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
28. 28.🫗 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
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) muddy water (d) cotton or cloth
30. 30.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
31. 31.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
32. 32.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) turmeric powder (d) yeast
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) mud from water (c) bran from wheat flour (d) tea leaves from tea
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a battery cell (d) a clean glass
36. 36.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
37. 37.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ 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
39. 39.True or false: mud from water is done by filtering. (a) False (b) True
40. 40.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False

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