Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 920 · 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.⚖️ 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 muddy water (c) the same funnel (d) how clear the water is
2. 2.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ 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
4. 4.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a balloon (d) a funnel
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
8. 8.⚖️ 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) the same glass (c) the same funnel (d) how clear the water is
9. 9.🫗 How do we separate bad grains from rice? (a) evaporating (b) sieving (c) filtering (d) handpicking
10. 10.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) cotton or cloth (d) a mirror
13. 13.🛟 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
14. 14.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
15. 15.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
16. 16.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) gravel from fine sand (c) salt from sea water (d) mud from water
17. 17.🫗 How do we separate tea leaves from tea? (a) handpicking (b) sieving (c) filtering (d) evaporating
18. 18.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) mud from water (d) sugar from sugar water
19. 19.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) a balloon (d) yeast
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a balloon (d) cotton or cloth
22. 22.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
23. 23.True or false: mud from water is done by filtering. (a) False (b) True
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) a mirror
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
27. 27.⚖️ 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
28. 28.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
29. 29.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
31. 31.⚖️ 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 change it (c) we measure it
32. 32.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) a magnet (d) a balloon
33. 33.🫗 How do we separate bran from wheat flour? (a) evaporating (b) filtering (c) winnowing (d) sieving
34. 34.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) gravel from fine sand (c) tea leaves from tea (d) husk from rice grain
35. 35.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
36. 36.⚖️ 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) True (b) False
37. 37.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) mud from water (c) bad grains from rice (d) gravel from fine sand
38. 38.🫗 Which of these is done by handpicking? (a) small stones from dal (b) tea leaves from tea (c) sugar from sugar water (d) gravel from fine sand
39. 39.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
40. 40.True or false: a magnet is needed for the muddy water filter. (a) True (b) False

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