Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 793 · 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) sand and pebbles (b) cotton or cloth (c) a balloon (d) muddy water
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a mirror (d) a balloon
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a mirror
5. 5.True or false: mud from water is done by filtering. (a) False (b) True
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
7. 7.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
8. 8.🫗 Which of these is done by evaporating? (a) mud from water (b) sugar from sugar water (c) bad grains from rice (d) tea leaves from tea
9. 9.⚖️ 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 funnel (c) the same muddy water (d) how clear the water is
10. 10.⚖️ 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
11. 11.🛟 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
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
13. 13.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bad grains from rice (c) bran from wheat flour (d) tea leaves from tea
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a magnet (d) muddy water
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 amount poured (c) how clear the water is
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) yeast (d) a funnel
17. 17.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) chaff from wheat grain (c) mud from water (d) bran from wheat flour
18. 18.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
19. 19.⚖️ 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
20. 20.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
22. 22.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
23. 23.🛟 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
24. 24.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bran from wheat flour (c) tea leaves from tea (d) salt from sea water
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a clean glass (c) yeast (d) a mirror
26. 26.⚖️ 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 measure it (c) we keep it the same
27. 27.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
28. 28.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
29. 29.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
32. 32.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
33. 33.True or false: bran from wheat flour is done by filtering. (a) True (b) False
34. 34.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
35. 35.🫗 How do we separate tea leaves from tea? (a) sieving (b) winnowing (c) filtering (d) evaporating
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same glass (c) the filter material (d) the amount poured
37. 37.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ 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 funnel
39. 39.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) evaporating (d) handpicking
40. 40.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True

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