Matter and Energy Review

Which of the following will not dissolve in water?

• Sugar

• Salt

• Lemonade Drink Mix

• Vegetable Oil

What would be the best way to separate salt water?

• Use your hands.

• Use a strainer.

• Boil it. The water will evaporate leaving the salt behind.

• It can't be separated.

Which uses primarily light and electrical energy?

• 
• 
• 
• 

How would you best separate a mixture of sand and gravel?

• strainer

• magnet

• hot plate

• tongs

Solubility means

• the ability to dissolve in water

• the ability to sink of float in water

• the ability of an object to be magnetic

• the ability of an object to conduct electricity

Oil, wood and plastic are all _________ dense than water.

• more

• less

Substance A is more dense than water. It's white and dissolves in water. It is not a conductor and is a solid. Substance A is most likely

• cotton ball

• paper

• salt

• wax

Which of the following properties would best describe the following group of items?

brass key, iron nail, steel paperclip

• good insulators

• soluble

• good conductors

• less dense than water

Which property of matter can you use to separate the items into two groups?

iron key - cotton ball - paperclip

key - penny - rubber band

• mass

• magnetism

• state of matter

• solubility

What is volume?

• the space occupied by an object

• how hot or cold something is

• the number of vibrations per second
• vibrations