Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 414 · 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.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
2. 2.🫗 Which of these is done by evaporating? (a) small stones from dal (b) mud from water (c) husk from rice grain (d) sugar from sugar water
3. 3.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a funnel (d) yeast
5. 5.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
6. 6.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
7. 7.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) turmeric powder (d) cotton or cloth
9. 9.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
10. 10.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a funnel (d) muddy water
13. 13.True or false: bran from wheat flour is done by sieving. (a) False (b) True
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a battery cell (c) cotton or cloth (d) muddy water
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a magnet (d) muddy water
16. 16.⚖️ 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) how clear the water is (c) the same muddy water
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same glass (c) the same muddy water (d) the filter material
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.True or false: chaff from wheat grain is done by filtering. (a) True (b) False
20. 20.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it sinks to the bottom (d) it turns to sand
21. 21.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
22. 22.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
23. 23.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
24. 24.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) a mirror (d) a magnet
27. 27.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.True or false: salt from sea water is done by evaporating. (a) False (b) True
30. 30.⚖️ 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 amount poured (c) how clear the water is
31. 31.⚖️ 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) True (b) False
32. 32.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
33. 33.⚖️ 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 measure it (b) we keep it the same (c) we change it
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) how clear the water is (d) the amount poured
35. 35.⚖️ 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
36. 36.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) filtering (d) sieving
37. 37.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 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
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) cotton or cloth (d) sand and pebbles
40. 40.🧺 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 magnet (d) a funnel

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