Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 514 · 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 funnel is not needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) cotton or cloth (d) a magnet
3. 3.True or false: husk from rice grain is done by winnowing. (a) True (b) False
4. 4.⚖️ 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
5. 5.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) handpicking (d) winnowing
6. 6.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a battery cell (d) muddy water
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) salty (d) muddier
11. 11.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
12. 12.🔮 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) it turns to sugar (d) no, salt passes through
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) muddy water (d) a magnet
14. 14.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) sieving (d) winnowing
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: tea leaves from tea is done by filtering. (a) False (b) True
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (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? True or false: how clear the water is is what we measure. (a) False (b) True
20. 20.True or false: chaff from wheat grain is done by filtering. (a) False (b) True
21. 21.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) evaporating
22. 22.⚖️ 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) how clear the water is (c) the same funnel (d) the same muddy water
23. 23.⚖️ 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
24. 24.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
25. 25.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
26. 26.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
27. 27.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) filtering (d) sieving
28. 28.⚖️ 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
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
30. 30.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
31. 31.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
32. 32.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a funnel (d) muddy water
36. 36.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a battery cell (d) turmeric powder
38. 38.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) yeast (d) sand and pebbles
40. 40.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed

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