Global Warming
What is a greenhouse effect?
Heat is trapped and can't escape.
What are two examples of a renewable resource?
solar, biomass, wind, hydro
Why is the sky blue?
Blue light is scattered by the particles in the air.
Hybrid
Mix of two
What type of energy do we use the most to make electricity in BC?
Hydroelectricity.
How does carbon dioxide contribute to global warming?
It traps the heat in earth's atmosphere.
Why don't we use solar powered cars?
Can't use in every environment
What do atoms move quickly when heated?
temperature is the measure of kinetic energy, so high temperature equals more movement.
Density
How much matter in volume/space
Why don't we have electric planes?
Battery is too heavy.
What are the effects of global warming?
Ocean levels rise
Animals can die
Climates can change
What is the problem with hybrid electric vehicles?
They still use fossil fuels that pollute the earth
How do people make electricity?
move a turbine with a magnet
magnet moves around a coil that pushes electrons
Dissipate
Slowly disappear
What's wrong with gathering solar energy from a desert?
It takes a lot of money to transport the energy to places that need it.
What are 3 examples of fossil fules?
Gasohol
What are the colors of the rainbow (in correct order)?
Red Orange Yellow Green Blue Indigo Violet
Alternative
Other option
Explain how the different materials are needed to create a solar oven.
Answers may vary.
What do some scientists argue against humans causing global warming?
The earth warms and cools naturally.
Name 3 advantages of riding a bike instead of driving a car. Name 3 disadvantages.
Answers may vary.
What is electricity made of?
moving electrons
Abundant
A lot, many
Answers may vary.