Genius (grade 4)

A ________ is a group of 2 or more organs working together to keep an organism alive.

• cell

• tissue

• organ

• Organ system

What is the biggest function of the respiratory system?

• to pump blood

• to help us digest food

• to take in oxygen and release carbon dioxide

• to help us fight disease and infection

This is a system in the body that includes the brain, spinal cord, and nerves. It coordinates and controls the body's actions.

• digestive system

• nervous system

• circulatory system

• muscular system

The movement that forces air out of the lungs is called...

• inhalation

• exhalation

• gas exchange

• pump blood

Which of the following statements about the human heart is correct?

• It is located under the lungs.

• it contracts voluntarily.

• It expands and contracts to pump blood.

• It is a tissue.

The body system that transports blood containing oxygen and nutrients around the body.

• Circulatory System

• Muscular System

• Digestive System

• Nervous System

The ability to do work is

• friction

• force

• energy

• speed

Energy that is stored in an object is called?

• kinetic energy

• inertia

• potential energy

• none of the above

kinetic energy is the ......

• stored energy

• energy of motion

• both a and b

• none of the above

a car has……………energy when it is moving.

• Kinetic

• Potential

• Electric

• Light