Earths Motions
What are Earths motions?
Earth´s motions are rotation and revolution.
What causes the tides?
The tides are caused by the moon and sun´s gravitational pull on Earth.
What are the horizontal imaginary lines called?
The horizontal imaginary lines are called parallels or lines of latitude.
What do we use to study space?
We use telescopes to study space.
How many types of maps are there?
There are two types of maps: physical and political maps.
What is rotation?
Rotation is the motion the Earth makes when it spins on its axis.
How many high tides are there in a day?
There are two (2) high tides every day.
What are the vertical imaginary lines called?
The vertical imaginary lines are called meridians or lines of longitude.
What do refracting telescopes use?
Refracting telescopes use lenses.
What are physical maps?
Physical maps show us the natural features, like mountains, rivers and lakes.
How long does rotation take?
Rotation takes 24 hours.
How many low tides are there in a day?
There are two (2) low tides every day.
What is the most important parallel called?
What do reflecting telescopes use?
Reflecting telescopes use mirrors.
What are political maps?
Political maps show us man-made features such as borders, cities and roads.
What is revolution?
Revolution is the motion the Earth makes when it orbits the Sun.
What does rotation produce?
Rotation produces day and night.
What is the most important meridian called?
The most important meridian is called the Greenwich Meridian or the Prime Meridian.
Is the Hubble telescope a refracting or reflecting telescope?
The Hubble telescope is a reflecting telescope.
What is a globe?
A globe is a 3d representation of Earth.
How long does revolution take?
The Earth takes 365 1/4 days to revolve around the Sun.
What does revolution produce?
Revolution produces the four (4) seasons.
What does the Equator divide the earth into?
The Equator divides the Earth into Northern Hemisphere and Southern Hemisphere.
Who was the first person to go into space?
Yuri Gagarin was the first person to orbit in space.
What is an atlas?
An atlas is a book full of maps and information about countries and the earth.