Chemistry
Climate Change
Biology
Optics
100
The symbol for this element is Mg.
What is magnesium?
100
The weather conditions that are common in an area over a long period of time.
What is climate?
100
The outer most layer of the plant cell that protects the cells structure
What is a cell wall?
100
A line perpendicular to the surface of a mirror or lens
What is a normal?
200
A change in which a new chemical is synthesized.
What is a chemical change?
200
The long term change in regional or global climate patterns.
What is climate change?
200
The final step of Mitosis in which two daughter cells are formed
What is Telophase?
200
When light hits a mirror, the angle of incidence equals to the angle of refection
What is the Law of Reflection?
300
Example of reaction is AB + C → CB + A
What is single displacement?
300
Demonstrated on this diagram: 
What is the greenhouse effect?
300
Lines the cavities and outer surface of the body to protect the structure
What is epithelial tissue?
300
A form of energy that is detectable with the naked eye
What is light?
400
The name of this molecular compound: N2O
What is dinitrogen monoxide.
400
Anything that absorbs more carbon than it releases as carbon dioxide (examples include: forests, oceans, etc).
What are carbon sinks?
400
Forms specialized cells that can be used to treat injuries and diseases
What is a stem cell?
400
When electricity passes through a gas/vapor and the gas atoms produce light
What is electric discharge?
500
The type of reaction that occurs when an acid and a base are combined.
What is neutralization?
500
Greenhouse gases that are due to human activity such as the burning of fossil fuels.
What are anthropogenic greenhouse gases?
500
A thick walled vessel that carries blood away from the heart to the tissue
What is an artery?
500
Shown when light bounces off a rough surface
What is diffuse reflection?