Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 839 · 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) a magnet (b) turmeric powder (c) muddy water (d) a battery cell
2. 2.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a battery cell
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 measure it (b) we keep it the same (c) we change it
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
6. 6.⚖️ 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
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
8. 8.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) mud from water (c) salt from sea water (d) chaff from wheat grain
9. 9.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a balloon
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a magnet (d) cotton or cloth
13. 13.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
14. 14.🫗 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
15. 15.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
16. 16.🫗 Which of these is done by sieving? (a) mud from water (b) small stones from dal (c) bran from wheat flour (d) bad grains from rice
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the amount poured
19. 19.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
20. 20.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) tea leaves from tea (c) sugar from sugar water (d) bran from wheat flour
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) sand and pebbles (d) turmeric powder
22. 22.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) filtering (d) sieving
23. 23.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
24. 24.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
25. 25.🫗 Which of these is done by handpicking? (a) small stones from dal (b) bran from wheat flour (c) chaff from wheat grain (d) gravel from fine sand
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) it turns to sand (d) yes, all of it
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
28. 28.🔍 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
29. 29.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a mirror (d) a clean glass
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
32. 32.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) sand and pebbles (d) a mirror
34. 34.⚖️ 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 same funnel (c) how clear the water is (d) the filter material
35. 35.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) evaporating (d) handpicking
36. 36.⚖️ 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 glass (c) how clear the water is
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) yeast
38. 38.⚖️ 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) False (b) True
39. 39.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
40. 40.True or false: yeast is needed for the muddy water filter. (a) True (b) False

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