Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 951 · 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.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
4. 4.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
6. 6.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) handpicking (d) evaporating
7. 7.🫗 How do we separate mud from water? (a) handpicking (b) sieving (c) winnowing (d) filtering
8. 8.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) mud from water (c) sugar from sugar water (d) chaff from wheat grain
9. 9.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
10. 10.⚖️ 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
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
13. 13.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
14. 14.🛟 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
15. 15.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) evaporating (d) sieving
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a clean glass (d) a funnel
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a battery cell (d) sand and pebbles
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
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 measure it (b) we change it (c) we keep it the same
20. 20.🫗 Which of these is done by evaporating? (a) salt from sea water (b) small stones from dal (c) bran from wheat flour (d) mud from water
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) turmeric powder
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a balloon (c) muddy water (d) sand and pebbles
23. 23.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
24. 24.True or false: salt from sea water is done by evaporating. (a) False (b) True
25. 25.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) sieving (d) evaporating
26. 26.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) muddy water (d) a battery cell
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) cotton or cloth (d) a battery cell
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
29. 29.⚖️ 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 funnel (c) the same glass (d) how clear the water is
30. 30.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) sugar from sugar water (c) tea leaves from tea (d) gravel from fine sand
31. 31.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) filtering (d) winnowing
32. 32.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) no, salt passes through (d) it turns to sugar
33. 33.⚖️ 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) True (b) False
34. 34.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
35. 35.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bran from wheat flour (c) husk from rice grain (d) tea leaves from tea
36. 36.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) sand and pebbles (d) a funnel
38. 38.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: bran from wheat flour is done by sieving. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the amount poured (c) the same glass (d) how clear the water is

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