Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 82 · 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 done by evaporating? (a) gravel from fine sand (b) sugar from sugar water (c) bad grains from rice (d) tea leaves from tea
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
6. 6.True or false: gravel from fine sand is done by sieving. (a) False (b) True
7. 7.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
8. 8.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
9. 9.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a mirror
12. 12.🫗 How do we separate salt from sea water? (a) handpicking (b) sieving (c) winnowing (d) evaporating
13. 13.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
14. 14.True or false: bad grains from rice is done by evaporating. (a) True (b) False
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) the same funnel (c) how clear the water is
16. 16.⚖️ 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 keep it the same (c) we change it
17. 17.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
18. 18.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) winnowing (d) handpicking
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) the amount poured (d) how clear the water is
20. 20.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) handpicking (d) filtering
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) a clean glass
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a balloon (d) a clean glass
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) a mirror (d) a clean glass
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a balloon (d) a funnel
25. 25.🔮 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
26. 26.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
27. 27.🫗 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
28. 28.🫗 Which of these is done by sieving? (a) husk from rice grain (b) tea leaves from tea (c) bad grains from rice (d) bran from wheat flour
29. 29.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a magnet (d) a balloon
32. 32.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ 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) the filter material (c) how clear the water is (d) the same muddy water
34. 34.⚖️ 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
35. 35.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
36. 36.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) gravel from fine sand (c) mud from water (d) tea leaves from tea
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) cotton or cloth (d) a funnel
38. 38.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
39. 39.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
40. 40.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) winnowing (d) sieving

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