Properties of Matter Review

Which item would be classified as magnetic?

• glass beaker
• iron nail
• rubber ball
• copper penny

Which liquid has the greatest density?

• lamp oil
• karo syrup
• water
• honey

Which liquid is the least dense?

• lamp oil
• karo syrup
• water
• honey

Which object is solid, soluble, and not magnetic?

• salt
• vinegar
  vinegar
• iron filings
  iron filings
• cinnamon

Boiling water was placed in containers made of three different materials.  How could you tell which material was the best insulator?

• the one that got cold quicker
• the one that stayed warm longer
• there is no way to tell
• the one that conducts electricity

Which object is magnetic and a conductor?

• iron nail
• wood
• glass
• copper wire

A student added sugar to a cup of water and stirred with a spoon.  After 10 minutes you could not see the sugar anymore.  What happened to the sugar?

• the sugar evaporated
• the sugar dissolved
• the sugar was magnetic

Which object is a conductor and not magnetic?

• iron nail
• cotton ball
• metal spoon

Why are electrical wires usually covered with plastic?

• to insulate the electrical wire
• to keep the wire warm
• to make the wire more conductive

If a box of crayons was left in a hot car which would not happen?

• the crayons would change shape
• the wax would become liquid
• the paper wrappers would melt