FINAL 8TH

Visible light is 

• radiation
• light
• a way to transfer energy
• all of these

The highest point on a wave

• trough
• amplitude
• crest
• wavelength

Light is a form of 

• energy
• radiation
• reflection

What is reflection in simple terms?

• Soaks up light
• Passes through
• light bounces off

Chlorine compounds that are the main cause of the ozone hole:

• Greenhouse Gas

• CFCs

• Global Warming

• Monsoon

What is climate change?

• When Earth's temperature is not balanced

• When Earth's temperature is balanced

Which human activity contributes the MOST carbon dioxide to the atmosphere?

• Fishing
• Breathing
• Burning Fossil Fuels
• Farming

Global warming is known as the gradual increase in _________________ of the atmosphere.

• precipitation

• sun spots

• temperature

• ocean currents

What do you call the temperature at which a substance changes from a liquid to a solid?

• Melting Point
• Boiling Point
• Freezing Point
• Solid Point

What is the freezing point on the celsius scale?

• 0
• 32
• 100
• -100