Unit 2 - Matter

What are the four states of matter?

• Solids, liquids, gas & plasma

• Solids, liquids, plasma & fission

• Solids, liquids, gas & fission

• Solids, liquids, proteins & gases

This picture is most likely a picture of a

• Solid

• Liquid

• Gas

• Plasma

• Fission

Which item is an example of a heterogenous mixture?

• Milk

• Salt water

• Chicken Noodle Soup

• Brass ( mixture of copper & tin)

Which is an example of a homogenous mixture?

• Pure water

• Gold

• Pizza

• Sweet tea

Which of the following is an element?

• Fire

• Earth

• Oxygen

• Water

Looking at the picture, which box(es) represent(s) a pure substance?

• W

• X & Y

• W & Y

• X

• X, Y & Z

Mrs. Rejmer explains that aluminum will react when placed in copper chloride solution, forming a gas, changing color and heating up. What she has described is a

• physical property

• physical change

• chemical property

• chemical change

Mr. Long explains that pumice (a porous and low density rock) will actually float in water. What he has described is a

• physical property

• physical change

• chemical property

• chemical change

Coach Frazier forgot and left some metal equipment outside over a long break. When he came back, the iron parts had reacted with the atmosphere and rusted -- turned from iron gray to rusty orange. What happened is best described as a

• physical property

• physical change

• chemical property

• chemical change

Ms. Cavender Was walking across the parking lot when the strap on her sandal broke. This is an example of a

• physical property

• physical change

• chemical property

• chemical change