Science - Chemical Sciences

Front

What is matter? Options: physical changes, anything that takes up space, chemical properties, physical properties

Back

anything that takes up space

Front

Is "a glass of milk becoming sour" physical or chemical?

Back

Chemical change

Front

Friction wears away the treads on a tire after miles of driving.  Physical or chemical change?

Back

Physical change

Front

Which of the following is a sign that a chemical reaction has occurred? Options: change in shape, melting, formation of a gas, dissolving

Back

formation of a gas

Front

What characteristic defines all chemical changes? Options: There is a change of state., Electricity is produced., Bubbles are produced.

Back

A new material is formed.

Front

Is "cutting wood" a chemical or physical change?

Back

Physical change

Front

Is corroding metal a chemical or physical change?

Back

chemical

Front

In a chemical reaction, ___ rearrange to form new substances.

Back

atoms

Front

Chemical changes occur when existing _______ break and new bonds form

Back

Bonds

Front

H20 is the symbol for what? Options: Sodium, Potassium, Hydrogen Peroxide, Water

Back

Water