Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 621 · 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.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a mirror (d) yeast
2. 2.⚖️ 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 measure it (b) we change it (c) we keep it the same
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same funnel (c) the same glass (d) the filter material
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 change it (b) we measure it (c) we keep it the same
5. 5.⚖️ 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
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
7. 7.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) handpicking (d) winnowing
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a mirror (d) a clean glass
10. 10.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
11. 11.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a battery cell (d) muddy water
14. 14.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
15. 15.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) sand and pebbles (d) a magnet
17. 17.🫗 How do we separate mud from water? (a) evaporating (b) filtering (c) sieving (d) winnowing
18. 18.True or false: yeast is needed for the muddy water filter. (a) True (b) False
19. 19.True or false: small stones from dal is done by winnowing. (a) True (b) False
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
23. 23.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) sugar from sugar water (c) tea leaves from tea (d) bad grains from rice
24. 24.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
25. 25.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) mud from water (c) sugar from sugar water (d) bad grains from rice
26. 26.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
27. 27.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) husk from rice grain (d) mud from water
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a funnel (c) sand and pebbles (d) a clean glass
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
30. 30.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) yeast (d) muddy water
32. 32.🫗 Which of these is done by filtering? (a) salt from sea water (b) bran from wheat flour (c) mud from water (d) bad grains from rice
33. 33.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
34. 34.True or false: small stones from dal is done by handpicking. (a) True (b) False
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a balloon (d) muddy water
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
37. 37.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
38. 38.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) yeast (d) a magnet
40. 40.True or false: gravel from fine sand is done by sieving. (a) False (b) True

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