Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 369 · 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) a funnel (b) muddy water (c) yeast (d) a clean glass
2. 2.True or false: mud from water is done by evaporating. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) turmeric powder
5. 5.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) filtering (d) handpicking
6. 6.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
7. 7.True or false: bran from wheat flour is done by sieving. (a) False (b) True
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
9. 9.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ 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) False (b) True
11. 11.True or false: a balloon is not needed for the muddy water filter. (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 amount poured”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) muddy water (d) a funnel
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 muddy water (b) the same glass (c) the filter material (d) the same funnel
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same glass (c) the filter material
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a magnet
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a clean glass (d) a balloon
18. 18.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
19. 19.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) a balloon (d) a clean glass
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
21. 21.⚖️ 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 amount poured (c) the same glass (d) how clear the water is
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) muddy water (c) a funnel (d) cotton or cloth
23. 23.🫗 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
24. 24.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
26. 26.⚖️ 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
27. 27.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) chaff from wheat grain (d) sugar from sugar 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) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
30. 30.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) husk from rice grain (c) bran from wheat flour (d) sugar from sugar water
31. 31.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter adds soap (c) the filter traps mud (d) the water evaporates
32. 32.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
33. 33.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
34. 34.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) turmeric powder
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a battery cell (d) cotton or cloth
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) sand and pebbles (d) a magnet
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) a mirror (d) a funnel
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) turmeric powder (d) muddy water

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