Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 787 · 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 magnet is not needed for the muddy water filter. (a) True (b) False
2. 2.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
4. 4.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
5. 5.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a funnel (d) a magnet
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) yeast (c) sand and pebbles (d) cotton or cloth
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) cotton or cloth (d) a funnel
8. 8.🛟 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
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
10. 10.⚖️ 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 glass (c) how clear the water is (d) the same muddy water
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) yeast (d) a clean glass
12. 12.🛟 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
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
14. 14.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) a mirror
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) muddy water (c) sand and pebbles (d) a funnel
17. 17.🫗 Which of these is done by winnowing? (a) salt from sea water (b) small stones from dal (c) husk from rice grain (d) mud from water
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) yeast (d) a battery cell
19. 19.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
20. 20.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
22. 22.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) evaporating (d) filtering
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) the salt (d) nothing
29. 29.🫗 Which of these is done by evaporating? (a) mud from water (b) sugar from sugar water (c) small stones from dal (d) husk from rice grain
30. 30.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
31. 31.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) chaff from wheat grain (c) bad grains from rice (d) salt from sea water
32. 32.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a clean glass (d) cotton or cloth
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) cotton or cloth (d) a funnel
37. 37.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
39. 39.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer

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