Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 215 · 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: muddy water is not needed for the muddy water filter. (a) False (b) True
2. 2.🫗 How do we separate sugar from sugar water? (a) filtering (b) handpicking (c) sieving (d) evaporating
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) yes, if it is cold (d) no, germs may stay
5. 5.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
7. 7.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
8. 8.True or false: mud from water is done by filtering. (a) True (b) False
9. 9.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a mirror (d) a clean glass
11. 11.🫗 How do we separate bad grains from rice? (a) filtering (b) sieving (c) handpicking (d) evaporating
12. 12.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
13. 13.🫗 How do we separate small stones from dal? (a) winnowing (b) sieving (c) handpicking (d) filtering
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a battery cell (d) sand and pebbles
15. 15.🔍 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 dissolves (d) it floats on top
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
19. 19.True or false: yeast is needed for the muddy water filter. (a) True (b) False
20. 20.True or false: gravel from fine sand is done by filtering. (a) False (b) True
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
24. 24.🫗 Which of these is done by filtering? (a) small stones from dal (b) bran from wheat flour (c) mud from water (d) bad grains from rice
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
28. 28.⚖️ 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 muddy water (d) how clear the water is
29. 29.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
30. 30.True or false: bran from wheat flour is done by sieving. (a) True (b) False
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) sieving (d) evaporating
33. 33.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
35. 35.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) muddy water (d) turmeric powder
37. 37.⚖️ 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 muddy water
38. 38.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
40. 40.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed

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