Transcript Sun Science

The Sun
The Sun
The sun is the nearest star to the Earth. The sun
appears very large and bright. However, it is not
especially large or bright when compared to other
stars. It appears this way because it is much closer to
the Earth than any other star. The nearest star is more
than 250,000 times farther away.
The nearest star to the Earth is_______________.
The Sun
Huge amounts of heat energy and light are given off by the
sun. The energy comes from nuclear reactions in the sun.
These reactions take place in the core, which is the center
of the sun. The temperature there is believed to be about
27 million degrees Fahrenheit. A large portion of the heat
energy is changed into light energy on the surface of the
sun. As a result, the temperature of the surface is only
about 10,000 degrees F.
The hottest part of the sun is___________________.
THE SUN
Even at the temperature of 10,000 degrees
Fahrenheit, the sun is very hot. Earth is about 93
million miles from the sun. This is just the right
distance for people to live on Earth. If we were
any closer to the sun it would be too hot to
support most forms of life. If the Earth were much
farther away from the sun, it would be too cold.
Many people have solar-powered calculators. What
kind of energy from the sun do these devices use?
EXTENSION
Select one natural disaster or type of bad weather that
your area sometimes experiences. For example, you
could pick an earthquake, tornadoes, flooding. Then
make a list of things you could do to prepare yourself
and your family for such an event. Then write a plan of
evacuation if you had to leave the area.