1. Which method is used to separate iron filings from sand? B. Sieving A. Filtration C. Use of magnet 2. What do you use to separate a solid that does not dissolve in water? A. Evaporation B. Decantation 3. Which of the following mixtures can be separated using a magnet? C. Filtration D. Decantation D. Picking CA 85. A. Pebbles and rice B. Sand and salt What is the best way to separate sand from muddy water? A. Picking B. Decantation C. Iron nails and flour D. Oil and water C. Filtration D. Sieving Which tool is used in filtration? A. Magnet B. Filter paper C. Spoon D. Net A. Solvent A. Filtering B. Solute B. Solution 6. In filtration, what remains on the filter paper? 7. Which process is NOT a way of separating mixtures? 8. What kind of mixture can be separated using filtration? A. Solid-solid C. Solid-liquid 9. What is the clear liquid called that passes through the filter paper? A. Residue 10. What happens when you use a magnet near iron and sand mixture? A. Both are attracted C. Only iron is attracted C. Residue D. Filtrate B. Magnetism B. Liquid-liquid C. Melting D. Decantation D. Gas-liquid C. Filtrate D. Mixture B. Only sand is attracted D. None are attracted
Answer (1)
My answers:1.) C. Use of magnet – to separate iron filings from sand.2.) B. Decantation – to separate a solid that does not dissolve in water.3.) C. Iron nails and flour – can be separated using a magnet.4.) B. Decantation – best way to separate sand from muddy water.5.) B. Filter paper – used in filtration.6.) Residue – what remains on the filter paper.7.) Melting – is NOT a way of separating mixtures.8.) Solid-liquid – mixture that can be separated using filtration.9.) Filtrate – the clear liquid that passes through the filter paper.10.) C. Only iron is attracted – when using a magnet near iron and sand mixture.
