Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 733 · 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? True or false: the same funnel is the one thing we change. (a) True (b) False
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? Which of these is the one thing we change? (a) the same funnel (b) the amount poured (c) the filter material (d) the same glass
4. 4.🔍 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 turns to sand (d) it dissolves
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
6. 6.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
7. 7.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) muddy water (d) a mirror
8. 8.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) sugar from sugar water (c) chaff from wheat grain (d) mud from water
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) cotton or cloth (c) yeast (d) a magnet
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a clean glass (d) a funnel
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a battery cell (d) sand and pebbles
16. 16.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) salt from sea water (d) bad grains from rice
19. 19.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
20. 20.⚖️ 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 change it (b) we keep it the same (c) we measure it
21. 21.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) chaff from wheat grain (c) gravel from fine sand (d) small stones from dal
22. 22.True or false: bad grains from rice is done by handpicking. (a) True (b) False
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the filter material (c) how clear the water is (d) the same glass
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) muddy water (d) cotton or cloth
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) sugar from sugar water (d) mud from water
28. 28.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
29. 29.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
30. 30.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) sand and pebbles (d) muddy water
32. 32.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
33. 33.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) filtering (d) sieving
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a clean glass (c) cotton or cloth (d) a funnel
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
36. 36.🫗 How do we separate gravel from fine sand? (a) filtering (b) handpicking (c) sieving (d) evaporating
37. 37.True or false: mud from water is done by winnowing. (a) False (b) True
38. 38.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
39. 39.True or false: yeast is needed for the muddy water filter. (a) True (b) False
40. 40.⚖️ 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

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