Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 976 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same funnel (c) the amount poured (d) the same muddy water
2. 2.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
3. 3.True or false: mud from water is done by filtering. (a) True (b) False
4. 4.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) it turns to sand (d) yes, all of it
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
7. 7.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a funnel (d) muddy water
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) a mirror (d) turmeric powder
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) sugar from sugar water (c) gravel from fine sand (d) small stones from dal
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same funnel (b) the same glass (c) the same muddy water (d) the filter material
14. 14.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
15. 15.🫗 Which of these is done by handpicking? (a) salt from sea water (b) chaff from wheat grain (c) mud from water (d) small stones from dal
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) sand and pebbles (d) muddy water
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
18. 18.⚖️ 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
19. 19.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
20. 20.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
21. 21.🫗 How do we separate salt from sea water? (a) handpicking (b) filtering (c) evaporating (d) winnowing
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) muddy water (d) cotton or cloth
25. 25.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) sand and pebbles (d) cotton or cloth
30. 30.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
31. 31.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
32. 32.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) cotton or cloth (d) a clean glass
34. 34.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) cotton or cloth (d) a funnel
36. 36.⚖️ 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
37. 37.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
38. 38.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) sand and pebbles (c) a magnet (d) a battery cell
40. 40.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True

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