Week 1 Science

Front

What are the two human body systems that help get oxygen to cells?

Back

The circulatory and respiratory systems.

Front

Which body system sends electrical signals to all other body systems?

Back

The nervous system.

Front

What is an estuary?

Back

A partly enclosed body of water where freshwater from rivers mixes with saltwater from the ocean.

Front

What is a balanced force?

Back

Forces that are equal in size and opposite in direction, causing no change in motion.

Front

What is an unbalanced force?

Back

Forces that always cause a change in motion and direction.

Front

What is the function of the circulatory system?

Back

To transport blood, nutrients, and oxygen to cells throughout the body.

Front

What does the respiratory system do?

Back

It helps us breathe in oxygen and breathe out carbon dioxide.

Front

What is the role of the nervous system?

Back

To send and receive messages throughout the body.

Front

What is a bay?

Back

A body of water partially surrounded by land, usually smaller than a gulf.

Front

What is a barrier island?

Back

A long, narrow island that protects the coast from waves and storms.