Exploring Matter and Chemical Reactions

Front

What type of property is color?

Back

Physical

Front

What is the atomic composition of a water molecule?

Back

Two hydrogen atoms and one oxygen atom

Tags

NGSS.MS-PS1-1

Front

What happens to the particles of a substance when thermal energy (heat) is added?

Back

The particles move faster and spread apart

Tags

NGSS.MS-PS1-4

Front

What is a sign that a chemical reaction has occurred?

Back

A change in color

Tags

NGSS.MS-PS1-2

Front

How does the total number of atoms change in a chemical reaction?

Back

The total number of atoms remains the same

Tags

NGSS.MS-PS1-5

Front

Predict what happens to the state of water when thermal energy is removed.

Back

It changes from liquid to solid

Tags

NGSS.MS-PS1-4

Front

A piece of iron rusts over time. What type of change is this?

Back

Chemical change

Tags

NGSS.MS-PS1-2

Front

What type of property is luster? (luster: how shiny an object is)

Back

physical

Front

Which model best represents the conservation of mass in a chemical reaction?

Back

The mass of reactants is equal to the mass of products

Tags

NGSS.MS-PS1-5

Front

Which process involves a chemical reaction in the human body? Options: Digestion of food, Breathing, Sweating, Walking

Back

Digestion of food