Physical & Chemical Changes; Clues to Reactions; Reaction Rates

Front

Is making orange juice a physical or chemical change?

Back

Physical

Front

Is sharpening a pencil a physical or chemical change?

Back

Physical

Front

Is copper tarnishing a physical or chemical change?

Back

Chemical

Front

Clue that a chemical change has occurred: State of matter change, Size Change, Change in temperature, Shape change

Back

Change in temperature

Front

What change has taken place when a marshmallow is roasted and how is it known?

Back

A chemical change because the marshmallow changed in taste, color, and smell

Front

What is a chemical change?

Back

When molecules react with each other and form new molecules

Front

Which is not a sign that a chemical reaction has occurred? Options: A change in mass, bubbling, production of an odor or smell, change in color.

Back

A change in mass

Front

Rotting Fruit (Like a brown banana)

Back

Chemical Change

Front

Burning Wood: Physical Change or Chemical Change?

Back

Chemical Change

Front

Frying Eggs: Physical Change or Chemical Change?

Back

Chemical Change