This is the hottest planet, despite the fact that it's not the closest to the sun.
What is Venus?
100
This tube connects a human's mouth to the stomach.
What is the Esophagus?
100
This force pulls a plane down, and has to be overcome for the plane to fly.
What is Gravity? (Also accept weight.)
100
This is the number of chambers in the human heart.
What is 4?
100
This is defined as a push or pull on an object, resulting from interaction with another object.
What is a Force?
200
This is the 5th planet from the sun.
What is Jupiter?
200
It's through this digestive organ that nutrients are absorbed into the blood.
What is the Small Intestine? (Also accept Villi)
200
This force pushes a plane forward.
What is Thrust?
200
Blood flows from the right ventricle to this organ, where oxygen and carbon dioxide are exchanged.
What is the Lung?
200
This word is described by Newton's first law of motion: an object at rest stays at rest, and an object in motion stays in motion, until an outside force acts upon it.
What is Inertia?
300
The planets are kept in orbit because the sun exerts this force.
What is Gravity?
300
Food stays in this organ for 3 or 4 hours, while it's churned and mixed with hydrochloric acid.
What is the Stomach?
300
Like friction, this force slows the plane as the plane touches the air around it.
What is Drag?
300
Once blood leaves this chamber of the heart, it travels throughout the body.
What is the Left Ventricle?
300
This is the word for the process of moving food through the digestive tract with wavelike muscle contractions.
What is Peristalsis?
400
This gas giant is named after the Roman god of the sea.
What is Neptune?
400
In this digestive organ, water is reabsorbed before waste leaves the body.
What is the Large Intestine?
400
This is the force that makes the plane rise up.
What is Lift?
400
These blood cells fight infection.
What are White Blood Cells?
400
This can be defined as the science of how objects move through air.
What is Aerodynamics?
500
The distance from the sun to this planet is measured as 1 astronomical unit.
What is Earth?
500
This enzyme in saliva breaks down starch.
What is Amylase?
500
Of Bernoullian Lift and Newtonian Lift, this is the one that relies on every action having an equal and opposite reaction.
What is Newtonian Lift?
500
These tiny blood vessels are where nutrients and oxygen leave the blood to go to the body's cells.