Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 813 · 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 needed for the muddy water filter. (a) True (b) False
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same glass (c) the same muddy water (d) how clear the water is
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
6. 6.⚖️ 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) False (b) True
7. 7.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
8. 8.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) yes, all of it (d) it turns to sugar
9. 9.True or false: bran from wheat flour is done by winnowing. (a) False (b) True
10. 10.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) turmeric powder (d) a funnel
12. 12.⚖️ 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
13. 13.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
14. 14.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
15. 15.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
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 magnet (d) a clean glass
17. 17.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
18. 18.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
19. 19.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) cotton or cloth (d) a battery cell
20. 20.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
21. 21.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a mirror (d) cotton or cloth
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the amount poured (d) the same funnel
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) a funnel (d) cotton or cloth
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) sand and pebbles (d) a clean glass
28. 28.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
29. 29.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) mud from water (d) chaff from wheat grain
30. 30.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
31. 31.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) cotton or cloth (d) sand and pebbles
33. 33.True or false: a balloon is 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? True or false: the same funnel is what we measure. (a) False (b) True
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
37. 37.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: husk from rice grain is done by evaporating. (a) True (b) False
39. 39.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) filtering (d) sieving
40. 40.⚖️ 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 funnel

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