Electricity
What is electric current?
A continuous flow of electrons
How many degrees is Earth's axis tilted?
23.5 degrees
What is a galaxy?
What is a tectonic plate?
Crust and upper mantle, pieces can move over the surface of the Earth.
What is the distribution of water on Earth?
There are 97% oceans and the other 3% is fresh water that could be trapped in ice caps and glaciers.
What is a conductor?
Allows the electrons to flow
Where is Earth's axis always pointed to?
Where are stars born?
Stars are born in the Nebulae. The larger stars have a shorter life span and smaller stars have a larger life span because they don't burn all their fuel faster.
What is a plate boundaries?
A storage location for water
What is electric power measured in?
It is measured in Watts or Kilowatts
When does a leap year occur?
Every 4 years we add a day
What is a spiral galaxy?
Pinwheel shape, Has old and young stars, Bulge in the center with thin disk
What are the types of plate boundaries?
What is residence time?
How long the water stays in a reservoir, could take minutes to millions of years.
What is electric charge?
Physical property that causes particles or objects to attract or repel without touching.
Which way does the Earth rotate?
Counter clockwise
What is an elliptical galaxy?
It is an oval shape, it has a bulge with no disk, there's less gases and dust, has older stars
What is seafloor spreading?
A hypothesis is that seafloor is being made at the mid-oceanic ridge and destroyed in the trenches near the continents.
What is climate affected by?
It's affected by latitude, atmospheric circulation, continental position, altitude and mountains, and climate zones and biomes.
What is an electric field?
An area around a charge where electric charge and electric force can be felt.
What holds Earth in its orbit?
The Sun's strong gravitational force holds the planets in their orbits.
What is an irregular galaxy?
It has no predictable shape and it has young and old stars.
What is echo sounding?
You can see things below water such as mid-ocean ridges, trenches, and abyssal plains. This helped prove Harry Hess's hypothesis of seafloor spreading.
What are all the layers in the atmosphere?
Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.