Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 329 · 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.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
2. 2.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) bad grains from rice (c) salt from sea water (d) tea leaves from tea
3. 3.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) muddy water (d) a battery cell
5. 5.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) winnowing (d) handpicking
6. 6.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ 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) how clear the water is (c) the same funnel (d) the same muddy water
8. 8.True or false: small stones from dal is done by handpicking. (a) True (b) False
9. 9.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
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 measure it (b) we change it (c) we keep it the same
13. 13.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) filtering (d) sieving
14. 14.⚖️ 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) True (b) False
15. 15.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) salt from sea water (c) tea leaves from tea (d) gravel from fine sand
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a mirror
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) yeast (d) cotton or cloth
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a battery cell (d) cotton or cloth
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) a clean glass (d) a funnel
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 same muddy water (b) the amount poured (c) the same glass (d) the filter material
23. 23.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
24. 24.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
25. 25.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) sieving
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) muddy water (d) a funnel
28. 28.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
29. 29.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ 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 muddy water (c) the filter material
31. 31.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
32. 32.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bran from wheat flour (c) mud from water (d) salt from sea water
34. 34.🔮 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) no, salt passes through (d) it turns to sugar
35. 35.True or false: bad grains from rice is done by winnowing. (a) True (b) False
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) muddy water (d) a mirror
38. 38.⚖️ 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
39. 39.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) gravel from fine sand (c) salt from sea water (d) tea leaves from tea
40. 40.True or false: gravel from fine sand is done by sieving. (a) True (b) False

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