Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 295 · 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.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
2. 2.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
3. 3.True or false: a balloon 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) sand and pebbles (b) cotton or cloth (c) a battery cell (d) muddy water
5. 5.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) turmeric powder (d) a battery cell
8. 8.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same glass (d) the filter material
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
11. 11.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
12. 12.True or false: husk from rice grain is done by evaporating. (a) True (b) False
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
14. 14.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
16. 16.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the same muddy water (d) the filter material
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
19. 19.⚖️ 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 measure it (c) we change it
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) cotton or cloth (d) a funnel
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
22. 22.True or false: bran from wheat flour is done by sieving. (a) False (b) True
23. 23.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
24. 24.True or false: tea leaves from tea is done by sieving. (a) False (b) True
25. 25.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
26. 26.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
27. 27.🫗 Which of these is done by filtering? (a) small stones from dal (b) gravel from fine sand (c) tea leaves from tea (d) sugar from sugar water
28. 28.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
29. 29.⚖️ 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
30. 30.True or false: sugar from sugar water is done by sieving. (a) True (b) False
31. 31.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
32. 32.True or false: salt from sea water is done by evaporating. (a) False (b) True
33. 33.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
34. 34.🫗 Which of these is done by evaporating? (a) mud from water (b) bad grains from rice (c) chaff from wheat grain (d) sugar from sugar water
35. 35.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) mud from water (c) tea leaves from tea (d) sugar from sugar water
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) cotton or cloth (d) a clean glass
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a magnet (d) cotton or cloth
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.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) salt from sea water (c) mud from water (d) husk from rice grain
40. 40.True or false: small stones from dal is done by evaporating. (a) False (b) True

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