Atmosphere
Human Body
Cells
Physics
Weather
100
What is the hottest layer in the atmosphere?
Thermosphere 
100

The job of an object or organ is called?

Function
100
What is a nerve cell called?
Neuron 
100

A person who studies physics is known as a?


Physicist

100

A thermometer is a device used to measure what?


Temprature
200
In what atmospheric layer is the ozone in?
Stratosphere 
200

What is the movement or passage through a system of vessels?



Circulation 
200
Name the Female and Male reproductive cell
The Egg and Sperm
200

Electric power is typically measured in what units?


Watts 
200

An anemometer is used to measure what?


Wind Speed
300
Which gas makes up most of the atmosphere?
Nitrogen 
300

How many bones are there in the human body?

206
300

Name the Female and Male reproductive organ

The Ovary and Testis 
300

What is the earth’s primary source of energy?

The Sun
300

What is the name of a scientist who studies weather?


A Meteorologist 
400

What is a boundary between two air masses with different temperature and moisture called?

A Front
400

What body system adds oxygen to the blood and removes carbon dioxide from blood?



The Respiratory System
400
What is the cell theory?

The cell theory states that the cell is the basic unit of living organisms



400

What scientist is well known for his theory of relativity?



Albert Einstein

400

What country experiences the most tornadoes?


The US
500

Which region gets the most direct rays?  

The Equator
500

What is a large flat muscle that separates the lungs from the stomach area and that is used in breathing?

Diaphragm 
500

What are the two main groups into which cells are classified?


Eukaryotic or Prokaryotic



500

Do conductors have a high or low resistance?


Low
500

The area of central US that features many tornadoes is known as Tornado ___ ?



Alley