Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 671 · 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 not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) sand and pebbles (d) a funnel
2. 2.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
3. 3.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) a clean glass (d) cotton or cloth
5. 5.🫗 How do we separate sugar from sugar water? (a) handpicking (b) sieving (c) evaporating (d) winnowing
6. 6.True or false: husk from rice grain is done by winnowing. (a) True (b) False
7. 7.⚖️ 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
8. 8.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) bad grains from rice (d) mud from water
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
10. 10.🔮 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) yes, all of it (d) it turns to sugar
11. 11.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
12. 12.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
14. 14.🫗 Which of these is done by sieving? (a) small stones from dal (b) gravel from fine sand (c) mud from water (d) bad grains from rice
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same glass (c) how clear the water is (d) the same funnel
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) cotton or cloth (d) sand and pebbles
18. 18.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
19. 19.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) sieving (d) handpicking
20. 20.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a magnet (d) a clean glass
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a mirror (d) cotton or cloth
25. 25.True or false: tea leaves from tea is done by filtering. (a) True (b) False
26. 26.⚖️ 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
27. 27.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
31. 31.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
32. 32.⚖️ 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 glass (b) the same muddy water (c) how clear the water is (d) the filter material
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the mud (d) the water
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a magnet (d) sand and pebbles
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a balloon (d) turmeric powder
36. 36.🫗 How do we separate salt from sea water? (a) handpicking (b) winnowing (c) sieving (d) evaporating
37. 37.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) muddy water (d) a balloon
39. 39.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) chaff from wheat grain (c) bran from wheat flour (d) salt from sea water
40. 40.🫗 Which of these is done by handpicking? (a) salt from sea water (b) small stones from dal (c) bran from wheat flour (d) mud from water

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