Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 306 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) a clean glass (d) muddy water
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) sand and pebbles (d) a funnel
4. 4.🫗 How do we separate gravel from fine sand? (a) handpicking (b) evaporating (c) winnowing (d) sieving
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
6. 6.⚖️ 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
7. 7.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
8. 8.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) turmeric powder (d) muddy water
10. 10.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a battery cell (d) a funnel
12. 12.⚖️ 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
13. 13.🫗 How do we separate sugar from sugar water? (a) sieving (b) winnowing (c) handpicking (d) evaporating
14. 14.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) husk from rice grain (d) chaff from wheat grain
15. 15.⚖️ 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
16. 16.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
17. 17.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
18. 18.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
19. 19.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
20. 20.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
21. 21.⚖️ 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
22. 22.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
23. 23.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) evaporating (d) sieving
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) cotton or cloth (d) a funnel
25. 25.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
26. 26.⚖️ 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) False (b) True
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) a funnel (d) muddy water
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same glass (c) the filter material
30. 30.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
31. 31.True or false: sugar from sugar water is done by filtering. (a) False (b) True
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a magnet (d) cotton or cloth
33. 33.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a magnet (d) yeast
35. 35.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) cotton or cloth (d) a magnet
36. 36.🔮 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
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
38. 38.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a mirror (c) a magnet (d) a balloon
40. 40.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bran from wheat flour (c) tea leaves from tea (d) bad grains from rice

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