Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 531 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
2. 2.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) sugar from sugar water (c) bad grains from rice (d) chaff from wheat grain
3. 3.🔮 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
4. 4.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) small stones from dal (d) bad grains from rice
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
6. 6.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) filtering (d) handpicking
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) turmeric powder (d) yeast
8. 8.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) sand and pebbles (d) muddy water
12. 12.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
13. 13.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
14. 14.True or false: sugar from sugar water is done by filtering. (a) False (b) True
15. 15.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
16. 16.⚖️ 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 glass (c) the filter material (d) the same muddy water
17. 17.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
18. 18.🫗 How do we separate mud from water? (a) filtering (b) winnowing (c) handpicking (d) sieving
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
21. 21.🫗 How do we separate tea leaves from tea? (a) sieving (b) evaporating (c) filtering (d) handpicking
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
23. 23.True or false: yeast is needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
25. 25.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
26. 26.⚖️ 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) how clear the water is (d) the same muddy water
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
28. 28.⚖️ 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
29. 29.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) mud from water (c) sugar from sugar water (d) tea leaves from tea
30. 30.True or false: bad grains from rice is done by sieving. (a) True (b) False
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
32. 32.True or false: tea leaves from tea is done by filtering. (a) False (b) True
33. 33.True or false: small stones from dal is done by filtering. (a) True (b) False
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) yeast (d) turmeric powder
35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
36. 36.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a balloon (c) a funnel (d) a clean glass
38. 38.⚖️ 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
39. 39.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed

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