Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 353 · 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.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
2. 2.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
3. 3.⚖️ 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
4. 4.🛟 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
5. 5.⚖️ 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
6. 6.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) muddy water (d) a balloon
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🔮 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) it turns to sugar (d) no, salt passes through
10. 10.⚖️ 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
11. 11.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
12. 12.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) filtering (d) evaporating
13. 13.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) sand and pebbles (d) cotton or cloth
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.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
17. 17.⚖️ 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 glass (c) the amount poured (d) the filter material
18. 18.🫗 Which of these is done by filtering? (a) bad grains from rice (b) tea leaves from tea (c) bran from wheat flour (d) salt from sea water
19. 19.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) yeast (d) a battery cell
21. 21.⚖️ 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
22. 22.⚖️ 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 amount poured
23. 23.⚖️ 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) True (b) False
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) yeast (d) a funnel
25. 25.True or false: gravel from fine sand is done by sieving. (a) True (b) False
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) cotton or cloth (d) a clean glass
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
28. 28.True or false: salt from sea water is done by winnowing. (a) True (b) False
29. 29.True or false: a battery cell is not 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 filter material (c) the same glass
31. 31.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same glass (c) the same funnel (d) the filter material
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a mirror (d) a funnel
36. 36.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) tea leaves from tea (c) gravel from fine sand (d) husk from rice grain
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) a funnel (d) cotton or cloth
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a clean glass (d) a magnet
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) muddy water (d) cotton or cloth
40. 40.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True

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