Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 994 · 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) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
2. 2.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ 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 amount poured (c) how clear the water is
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) a funnel (d) muddy water
5. 5.🫗 Which of these is done by sieving? (a) small stones from dal (b) salt from sea water (c) bran from wheat flour (d) bad grains from rice
6. 6.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the amount poured (c) the filter material (d) how clear the water is
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
10. 10.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) salt from sea water (d) bran from wheat flour
11. 11.🫗 Which of these is done by winnowing? (a) salt from sea water (b) chaff from wheat grain (c) sugar from sugar water (d) bad grains from rice
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
13. 13.⚖️ 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 funnel
14. 14.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
16. 16.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
18. 18.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) sand and pebbles (c) a funnel (d) a clean glass
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) cotton or cloth (d) turmeric powder
23. 23.⚖️ 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 change it (b) we measure it (c) we keep it the same
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
25. 25.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) evaporating (d) filtering
26. 26.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) filtering (d) sieving
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a magnet (d) cotton or cloth
28. 28.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) mud from water (c) bad grains from rice (d) sugar from sugar water
29. 29.True or false: sugar from sugar water is done by filtering. (a) False (b) True
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
31. 31.⚖️ 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
32. 32.⚖️ 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 funnel
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a mirror (c) a funnel (d) muddy water
38. 38.⚖️ 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) False (b) True
39. 39.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) handpicking (d) evaporating
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) a battery cell (d) a magnet

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