Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 594 · 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 sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
2. 2.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
3. 3.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) filtering (c) sieving (d) handpicking
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a balloon
5. 5.True or false: bran from wheat flour is done by sieving. (a) True (b) False
6. 6.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
8. 8.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
9. 9.⚖️ 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
10. 10.⚖️ 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 same muddy water (c) how clear the water is (d) the amount poured
11. 11.True or false: bad grains from rice is done by evaporating. (a) False (b) True
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a magnet (d) sand and pebbles
14. 14.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
15. 15.🫗 How do we separate bad grains from rice? (a) handpicking (b) sieving (c) winnowing (d) evaporating
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
17. 17.🫗 Which of these is done by evaporating? (a) salt from sea water (b) mud from water (c) small stones from dal (d) chaff from wheat grain
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves stay behind (d) leaves pass through
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) tea leaves from tea (d) mud from water
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
24. 24.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
25. 25.🫗 How do we separate sugar from sugar water? (a) winnowing (b) handpicking (c) evaporating (d) sieving
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 amount poured (b) the filter material (c) how clear the water is (d) the same glass
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) muddy water (d) a clean glass
28. 28.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) salt from sea water (d) bad grains from rice
29. 29.True or false: mud from water is done by evaporating. (a) False (b) True
30. 30.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
31. 31.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
32. 32.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ 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
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) yeast
37. 37.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bran from wheat flour (c) gravel from fine sand (d) mud from water
38. 38.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
39. 39.⚖️ 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) False (b) True
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) cotton or cloth

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