1) If a material, like iron filings or steel paper clips, are classified as magnetic, then they must be also classified as a type of _____ because ONLY these are magnetic. a) plastic b) wood c) metal d) rubber 2) Based on relative density, we learned that oil is ________ dense than________ and __________. a) less, water, honey b) more, water, honey c) equal, water, honey 3) Why are all liquids classified as liquid and not solid? a) Because liquids have different colors. b) Because liquids have more density than solids. c) Because liquids take the shape of the container they fill. 4) What types of mixtures do NOT MAINTAIN all of the physical properties of their ingredients when mixed together. a) salt & iron filings, pepper and salt b) salt and water, sugar and water c) salt and sand, sugar and sand d) sand and water, water and pepper 5) Why are rubber or plastic handles important? a) Rubber and plastic are good insulators of thermal energy. b) Rubber and plastic are NOT good insulators of thermal energy. c) Rubber and plastic are good conductors of thermal energy. 6) Which mixture can be separated using a magnet? a) sand and water b) salt and water c) erasers and bottle caps d) pepper and iron filings

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