Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 855 · 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 poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a balloon
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) cotton or cloth (c) a funnel (d) sand and pebbles
5. 5.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
6. 6.🛟 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
7. 7.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it floats on top (d) it dissolves
9. 9.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a clean glass (c) a battery cell (d) a mirror
11. 11.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) how clear the water is (d) the amount poured
13. 13.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
16. 16.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
17. 17.⚖️ 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) True (b) False
18. 18.🫗 How do we separate sugar from sugar water? (a) handpicking (b) filtering (c) winnowing (d) evaporating
19. 19.🫗 How do we separate bran from wheat flour? (a) filtering (b) evaporating (c) handpicking (d) sieving
20. 20.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, if it is clear (d) yes, always
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) muddy water (c) a magnet (d) turmeric powder
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) turmeric powder (d) yeast
25. 25.True or false: tea leaves from tea is done by filtering. (a) True (b) False
26. 26.⚖️ 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
27. 27.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
28. 28.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a magnet (d) yeast
30. 30.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
31. 31.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ 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) how clear the water is (c) the same funnel
33. 33.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) small stones from dal (c) mud from water (d) tea leaves from tea
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a funnel (d) yeast
36. 36.⚖️ 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
37. 37.True or false: salt from sea water is done by evaporating. (a) False (b) True
38. 38.⚖️ 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
39. 39.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) bran from wheat flour (c) husk from rice grain (d) bad grains from rice
40. 40.True or false: husk from rice grain is done by winnowing. (a) False (b) True

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