The far right column on the periodic table of elements, containing such elements as xenon and radon, is otherwise known as this.
What is the noble gases?
100
This substance within the stratosphere protects us from harmful UV rays from the Sun, and is slowly disappearing.
What is ozone?
100
This is the name for light which is produced by a chemical reaction without a rise in temperature.
What is chemiluminescense?
100
This organelle is found in plant cells exclusively.
What are chloroplasts?
200
This property of any substance is determined by its ability to dissolve in water.
What is its solubility?
200
This agreement was signed by all countries of the United Nations in an attempt to battle climate change, although few to none were able to live up to their promises.
What is the Kyoto Protocol?
300
All substances deemed hazardous contain labels which inform and warn the user of the dangers of using said substance. This system of labels is otherwise known as this.
What are the WHMIS labels?
300
This gas is the most plentiful within the Earth's atmosphere, occupying 78% of all air.
What is nitrogen?
300
When reflected rays diverge, yet the human brain projects these rays backwards to produce an image behind the object, said image is known as this.
What is a virtual image?
300
This is the stage of cell division where it is commonly mistaken that the cell rests idle.
What is interphase?
300
This spacecraft was launched in 1977 and has traveled further than any other man-made object.
What is Voyager 1?
400
Tumors that are said to be cancerous are otherwise known as this.
What is malignant?
500
This is the name for a substance made up of two or more elements in a fixed ratio.
What is a compound?
500
This is an automated and reusable rocket designed as part of the SpaceX program led by Elon Musk.