Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 559 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) a battery cell
2. 2.🫗 How do we separate mud from water? (a) evaporating (b) winnowing (c) filtering (d) sieving
3. 3.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) filtering (d) evaporating
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) yeast (d) cotton or cloth
5. 5.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
6. 6.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a mirror (d) a clean glass
7. 7.🔮 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) it turns to sugar (d) yes, all of it
8. 8.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) muddy water (c) sand and pebbles (d) a clean glass
13. 13.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) evaporating (d) winnowing
14. 14.⚖️ 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 funnel (b) the filter material (c) the same muddy water (d) the amount poured
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
16. 16.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
17. 17.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) sand and pebbles (d) a balloon
19. 19.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) winnowing (d) filtering
20. 20.🫗 Which of these is done by sieving? (a) mud from water (b) sugar from sugar water (c) gravel from fine sand (d) chaff from wheat grain
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) both stay behind (d) leaves pass through
22. 22.True or false: mud from water is done by sieving. (a) True (b) False
23. 23.⚖️ 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) True (b) False
24. 24.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
25. 25.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) handpicking (d) filtering
26. 26.⚖️ 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 filter material (d) the same funnel
27. 27.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
28. 28.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) winnowing (d) filtering
29. 29.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
30. 30.True or false: sugar from sugar water is done by sieving. (a) True (b) False
31. 31.True or false: mud from water is done by filtering. (a) False (b) True
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a balloon
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) cotton or cloth (d) a magnet
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) cotton or cloth (d) muddy water
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 keep it the same (b) we measure it (c) we change it
36. 36.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) a magnet (d) a balloon
37. 37.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ 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
39. 39.True or false: gravel from fine sand is done by sieving. (a) False (b) True
40. 40.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed

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