Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 199 · 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.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a funnel (d) a clean glass
4. 4.🛟 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
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
6. 6.🫗 Which of these is done by filtering? (a) salt from sea water (b) gravel from fine sand (c) bran from wheat flour (d) tea leaves from tea
7. 7.True or false: salt from sea water is done by filtering. (a) False (b) True
8. 8.True or false: gravel from fine sand is done by filtering. (a) False (b) True
9. 9.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
11. 11.True or false: bran from wheat flour is done by sieving. (a) True (b) False
12. 12.🫗 Which of these is done by evaporating? (a) small stones from dal (b) husk from rice grain (c) gravel from fine sand (d) sugar from sugar water
13. 13.🫗 How do we separate sugar from sugar water? (a) handpicking (b) sieving (c) evaporating (d) filtering
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
15. 15.🫗 How do we separate small stones from dal? (a) handpicking (b) evaporating (c) winnowing (d) filtering
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
17. 17.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
18. 18.🫗 Which of these is done by sieving? (a) bad grains from rice (b) chaff from wheat grain (c) sugar from sugar water (d) bran from wheat flour
19. 19.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
20. 20.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
22. 22.🫗 How do we separate gravel from fine sand? (a) evaporating (b) filtering (c) sieving (d) winnowing
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ 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 filter material (c) the same funnel (d) how clear the water is
25. 25.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
26. 26.⚖️ 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
27. 27.🧺 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) turmeric powder
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) a funnel (d) a clean glass
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) handpicking (d) winnowing
31. 31.True or false: mud from water is done by handpicking. (a) False (b) True
32. 32.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
33. 33.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
34. 34.⚖️ 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
35. 35.🫗 Which of these is done by winnowing? (a) salt from sea water (b) gravel from fine sand (c) mud from water (d) chaff from wheat grain
36. 36.True or false: bad grains from rice is done by evaporating. (a) True (b) False
37. 37.⚖️ 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) the same glass (c) the same funnel (d) how clear the water is
38. 38.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) bad grains from rice (c) husk from rice grain (d) sugar from sugar water
39. 39.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) salt from sea water (c) mud from water (d) tea leaves from tea
40. 40.⚖️ 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 keep it the same (c) we measure it

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