1) What physical property is used to identify the ability to dissolve? a) Conductivity b) Magnetism c) Solubility d) Density 2) Which of these materials would NOT be a good insulator of electricity? a) Metal b) Glass c) Plastic d) Wood 3) Which substance is NOT soluble in water? a) Powdered drink mix b) Sugar c) Salt d) Sand 4) What evidence in the picture proves ice has less density than water? a) The water has more buoyancy than the ice cubes b) The ice cubes are floating in water c) The ice cubes are resting at the bottom of the glass d) The ice cubes are melting and becoming a liquid 5) A student sorted objects into 2 groups: Group 1 - Paper clip, iron nail, copper penny Group 2- Candle, pencil, craft stick. Based on the information, which is the best title for Group 1? a) Objects that conduct electricity b) Objects that make good insulators c) Objects that are magnetic d) Objects that float 6) Which substances, when mixed together, maintain their original physical properties? a) Gravel and water b) Wood chips, water and sand c) Sand and water d) all of the above 7) Which of the following mixtures can be separated with a magnet? a) Sand and salt b) Sand and iron filings c) Sugar and water d) Saltwater 8) A student stirs lemon juice and sugar into a glass of water. Why is this drink considered a solution? a) The lemon juice and sugar change the taste of the water b) The water changes color c) The lemon juice and sugar dissolve in the water d) The student stirs the mixture 9) A beaker contains a mixture of salt, sand, gravel and iron filings. Which substance is soluble in water? a) Salt b) Sand c) Iron filings d) Gravel 10) Ice cream is left out the freezer for several hours. It changes from a solid to a liquid. This change is most likely caused by- a) adding cool air b) taking away heat c) adding heat d) an air conditioner unit

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