Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 287 · 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.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) evaporating (d) sieving
2. 2.⚖️ 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 amount poured (c) the same muddy water (d) the filter material
3. 3.⚖️ 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) the amount poured (c) how clear the water is
4. 4.⚖️ 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 measure it (c) we keep it the same
5. 5.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
6. 6.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
9. 9.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a mirror (d) a balloon
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) the same funnel (d) how clear the water is
12. 12.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) muddy water (d) yeast
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.True or false: yeast is needed for the muddy water filter. (a) False (b) True
18. 18.🫗 Which of these is done by handpicking? (a) small stones from dal (b) husk from rice grain (c) tea leaves from tea (d) gravel from fine sand
19. 19.True or false: salt from sea water is done by sieving. (a) False (b) True
20. 20.True or false: tea leaves from tea is done by filtering. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a balloon (d) a funnel
22. 22.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
23. 23.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) sieving (d) handpicking
24. 24.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
25. 25.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) evaporating (d) handpicking
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) a funnel (c) a clean glass (d) sand and pebbles
27. 27.⚖️ 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
28. 28.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a clean glass (d) a funnel
30. 30.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) a funnel (d) a clean glass
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 How do we separate mud from water? (a) handpicking (b) sieving (c) filtering (d) winnowing
35. 35.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.⚖️ 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
38. 38.🫗 Which of these is done by sieving? (a) bad grains from rice (b) chaff from wheat grain (c) gravel from fine sand (d) tea leaves from tea
39. 39.⚖️ 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
40. 40.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand

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