The Sun, Stars and Solar The Sun, Stars and Solar SystemSystem

Objects Beyond the Earth’s Objects Beyond the Earth’s AtmosphereAtmosphere

What is the sun?What is the sun?

Sun SafetySun Safety

When studying the sun safety is very When studying the sun safety is very important!important!

Write one sun safety rule:Write one sun safety rule:

The Sun From the EarthThe Sun From the Earth

The Sun and Solar FlareThe Sun and Solar Flare

Sun FactsSun FactsMakes life on our planet possible by giving us great amounts of light and heat.

Contains about 98% of the mass of the entire Solar System.

Is just a medium sized star (yellow dwarf). It is about 1.4 million kilometers in diameter.

Sun FactsSun Facts

Is the center of our Solar System. All the planets and other objects orbit around it.

Is very gaseous, and made up mostly of hydrogen.

Contains dark spots that are known as sunspots.

How is the sun different than How is the sun different than other stars? other stars?

StarsStars

Star FactsStar Facts

Are formed initially from gas and dust. Are formed initially from gas and dust. They are made mainly of hydrogen gas. They are made mainly of hydrogen gas.

Are very hot and give off huge amounts of Are very hot and give off huge amounts of energy in the form of heat and light. energy in the form of heat and light.

Our Sun is a medium sized star. Our Sun is a medium sized star.

More Star FactsMore Star Facts

Are very far away from Earth. The closest Are very far away from Earth. The closest Star is about 23.5 trillion miles away. Star is about 23.5 trillion miles away.

A group of stars that form a star picture is A group of stars that form a star picture is called a constellation. called a constellation.

The sky has about 88 constellations.The sky has about 88 constellations.

Constellation ScorpiusConstellation Scorpius

Swan ConstellationSwan Constellation

OrionOrion

OrionOrion

OrionOrion

How is the solar system How is the solar system different than the sun?different than the sun?

The Solar SystemThe Solar System

Another Look at the Solar SystemAnother Look at the Solar System

Solar SystemSolar System

The Solar SystemThe Solar System Contains the eight planets and other smaller objects Contains the eight planets and other smaller objects

such as minor planets, comets, meteoroids and such as minor planets, comets, meteoroids and cosmic dust. cosmic dust.

The first four inner planets (Mercury, Venus, Earth, The first four inner planets (Mercury, Venus, Earth, and Mars) are relatively small and resemble the Earth and Mars) are relatively small and resemble the Earth in composition (rocky). in composition (rocky).

The next four planets (Jupiter, Saturn, Uranus, and The next four planets (Jupiter, Saturn, Uranus, and Neptune) are much larger planets and are very Neptune) are much larger planets and are very gaseous in nature. Pluto is now called a minor or gaseous in nature. Pluto is now called a minor or dwarf planet that is far from the sun. dwarf planet that is far from the sun.

The Solar System ContinuedThe Solar System Continued

All the objects in our Solar System orbit All the objects in our Solar System orbit the Sun. It is so big that everything in our the Sun. It is so big that everything in our Solar System could fit in it many times. Solar System could fit in it many times.

Many scientists believe that our Solar Many scientists believe that our Solar System is over 4.6 billion years old. System is over 4.6 billion years old.

VocabularyVocabulary

SunSunEnergyEnergySolar energySolar energyOrbitOrbitSolar systemSolar systemconstellationconstellation

Sailing Out to SpaceSailing Out to Space

I dream of sailing out to space,I dream of sailing out to space,Upon a yacht of stars.Upon a yacht of stars.With port holes all along the sides,With port holes all along the sides,I'd gaze amazed at Mars.I'd gaze amazed at Mars.

With stars in front and stars behind,With stars in front and stars behind,And planets far and near,And planets far and near,I'd sail my yacht around the rings,I'd sail my yacht around the rings,Of Saturn with a cheer. Of Saturn with a cheer.