Review for Touchstone #1

What Is Matter?

• Any substance that has mass and takes up space by having volume

• Anything substance that you can see or taste.

• Any substance that you can touch.

• Any object that is consumable by humans

A gas

• has a definite shape but no definite volume
• has a definite volume but no definite shape
• has no definite volume and no definite shape

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Define a liquid.

• Indefinite shape, indefinite volume
• Definite shape, definite volume
• Found in stars
• Definite volume, indefinite shape

What would cause a decrease in particle movement?

• decrease atoms
• increase in space between atoms
• decrease in temperature
• increase in mass

How are the particles moving in liquids?

• Sliding past one another
• moving past one another with great speed
• vibrating in a fixed postion

Which state of matter has tightly packed molecules?

• solid
• liquid
• gas

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

A change where one or more new substances are created.

• Physical Change 
• Chemical Change