Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 71 · 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 needed for the muddy water filter. (a) True (b) False
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🛟 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
5. 5.⚖️ 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 filter material (d) how clear the water is
6. 6.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a clean glass (d) cotton or cloth
8. 8.⚖️ 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 filter material (c) the same glass
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) cotton or cloth
10. 10.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
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 measure it (b) we keep it the same (c) we change it
12. 12.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) tea leaves from tea (c) small stones from dal (d) chaff from wheat grain
13. 13.🫗 Which of these is done by handpicking? (a) salt from sea water (b) gravel from fine sand (c) bad grains from rice (d) tea leaves from tea
14. 14.⚖️ 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
15. 15.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the water evaporates (d) the mud dissolves
16. 16.⚖️ 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 change it (b) we measure it (c) we keep it the same
17. 17.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) turmeric powder
19. 19.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
20. 20.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) a mirror (d) cotton or cloth
23. 23.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
24. 24.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) chaff from wheat grain (c) small stones from dal (d) gravel from fine sand
25. 25.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
26. 26.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) bad grains from rice
27. 27.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
28. 28.🛟 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
29. 29.🫗 How do we separate salt from sea water? (a) sieving (b) winnowing (c) handpicking (d) evaporating
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) yeast (d) muddy water
31. 31.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
32. 32.True or false: husk from rice grain is done by winnowing. (a) True (b) False
33. 33.True or false: tea leaves from tea is done by filtering. (a) True (b) False
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.True or false: mud from water is done by filtering. (a) False (b) True
36. 36.True or false: yeast is needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) turmeric powder (d) a mirror
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) the same funnel (d) how clear the water is
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True

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