Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 521 · 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.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) a battery cell (d) turmeric powder
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a battery cell (d) cotton or cloth
3. 3.⚖️ 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 same glass (c) the filter material
4. 4.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
5. 5.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a clean glass (d) a battery cell
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
7. 7.⚖️ 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 measure it (b) we change it (c) we keep it the same
8. 8.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) sand and pebbles (d) a magnet
9. 9.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) cotton or cloth (d) muddy water
11. 11.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) a funnel (d) a magnet
13. 13.⚖️ 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 glass (b) how clear the water is (c) the filter material (d) the same muddy water
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
15. 15.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
17. 17.⚖️ 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
18. 18.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
20. 20.⚖️ 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
21. 21.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) turmeric powder (d) cotton or cloth
23. 23.True or false: mud from water is done by filtering. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) a funnel (d) a clean glass
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a mirror
27. 27.True or false: yeast is needed for the muddy water filter. (a) True (b) False
28. 28.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) mud from water (c) bad grains from rice (d) salt from sea water
29. 29.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) muddy water (d) a clean glass
31. 31.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
32. 32.⚖️ 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 amount poured
33. 33.⚖️ 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
34. 34.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) gravel from fine sand (c) salt from sea water (d) husk from rice grain
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) turmeric powder
36. 36.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ 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
38. 38.True or false: bran from wheat flour is done by sieving. (a) True (b) False
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
40. 40.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) husk from rice grain (c) bran from wheat flour (d) bad grains from rice

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