Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 652 · 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.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) both stay behind (d) leaves pass through
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it turns to sand (d) it floats on top
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) cotton or cloth (d) sand and pebbles
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) True (b) False
6. 6.⚖️ 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 funnel (c) the filter material (d) the amount poured
7. 7.🫗 Which of these is done by handpicking? (a) small stones from dal (b) mud from water (c) husk from rice grain (d) tea leaves from tea
8. 8.🛟 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
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) muddy water (d) cotton or cloth
11. 11.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
13. 13.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a mirror (d) a balloon
14. 14.🔮 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) no, salt passes through (d) it turns to sugar
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same muddy water (c) how clear the water is (d) the filter material
16. 16.⚖️ 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
17. 17.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: salt from sea water is done by evaporating. (a) True (b) False
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a balloon
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) cotton or cloth (d) sand and pebbles
22. 22.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
23. 23.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) a balloon (d) a magnet
24. 24.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
25. 25.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
26. 26.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) filtering (d) winnowing
27. 27.🔮 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
28. 28.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
30. 30.True or false: sugar from sugar water is done by filtering. (a) False (b) True
31. 31.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) turmeric powder (d) a funnel
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) a magnet
34. 34.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
35. 35.🫗 How do we separate bran from wheat flour? (a) winnowing (b) evaporating (c) handpicking (d) sieving
36. 36.True or false: bad grains from rice is done by sieving. (a) True (b) False
37. 37.⚖️ 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 measure it (c) we change it
38. 38.True or false: bad grains from rice is done by evaporating. (a) True (b) False
39. 39.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) a clean glass (d) sand and pebbles

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