LOL: Meet Our LOL: Meet Our Solar SystemSolar System

A A solar systemsolar system consists of a star and the objects that consists of a star and the objects that travel around it.travel around it.

Our Our Solar SystemSolar System includes our central star, the Sun, the includes our central star, the Sun, the planets, moons, asteroids, meteors and comets.planets, moons, asteroids, meteors and comets.

The inner planets are Mercury, Venus, Earth and Mars.The inner planets are Mercury, Venus, Earth and Mars.

The outer planets are Jupiter, Saturn, Uranus and The outer planets are Jupiter, Saturn, Uranus and Neptune.Neptune.

A planet is a large spherical satellite of a starA planet is a large spherical satellite of a star

LOL: How Big Are the PlanetsLOL: How Big Are the Planets

Most astronomical objects (things in space) are Most astronomical objects (things in space) are too big and too far away to study up close and in too big and too far away to study up close and in person. We use scale models, smaller versions, person. We use scale models, smaller versions, to help us understand these objects better.to help us understand these objects better.

The Sun is HUGE compared to all the planetsThe Sun is HUGE compared to all the planets Outer planets are MUCH larger than inner Outer planets are MUCH larger than inner

planetsplanets Jupiter is the largest planet in our solar systemJupiter is the largest planet in our solar system

LOL- Distance of the PlanetsLOL- Distance of the Planets

The inner planets are closer together, and The inner planets are closer together, and are closer to the sun.are closer to the sun.

The outer planets are really spread out The outer planets are really spread out and much bigger than the inner planetsand much bigger than the inner planets

LOL: Earth’s Motion in SpaceLOL: Earth’s Motion in Space The Earth’s motion (movement) causes us to The Earth’s motion (movement) causes us to

have day and night. have day and night. The Earth The Earth RotatesRotates every 24 hours and this every 24 hours and this

caused day and nightcaused day and night Rotation- is when the Earth is spinning on its Rotation- is when the Earth is spinning on its

axis.axis. Axis- is an imaginary line that runs through Axis- is an imaginary line that runs through

the 2 polesthe 2 poles

There is a Tilt in our--There is a Tilt in our--Earth’s axis Earth’s axis

LOL: Earth’s Motion Cont.LOL: Earth’s Motion Cont. The Earth The Earth rotates rotates counterclockwise counterclockwise The Earth orbits or Revolves around the sun The Earth orbits or Revolves around the sun

counterclockwise.counterclockwise.

Revolves (Orbits) – the path an object takes when Revolves (Orbits) – the path an object takes when orbiting around another objectorbiting around another object

It takes the Earth 365 days to make one complete It takes the Earth 365 days to make one complete revolution around the sun. That is a whole year!revolution around the sun. That is a whole year!

LOL: ShadowsLOL: Shadows

The sun appears to rise in the East The sun appears to rise in the East The Sun appears to set in the WestThe Sun appears to set in the West You will have long shadows in the early morning You will have long shadows in the early morning

“sunrise” and the evening “sunset” because the “sunrise” and the evening “sunset” because the sun is low in the sky.sun is low in the sky.

When the sun is high in the sky you will have When the sun is high in the sky you will have shorter shadowsshorter shadows

Three things you need to have to make a Three things you need to have to make a shadow are: source of light, object, and a shadow are: source of light, object, and a surfacesurface

LOL: Earth as a Unique PlanetLOL: Earth as a Unique Planet

We need water, air, the right temperature, food, We need water, air, the right temperature, food, and shelter to survive. and shelter to survive.

Earth has all of these!Earth has all of these! We are the only planet that has life on it.We are the only planet that has life on it. The Earth and Sun are alike because the both The Earth and Sun are alike because the both

are in our solar system and the both spin are in our solar system and the both spin counterclockwisecounterclockwise

The Earth and sun are different because the The Earth and sun are different because the Earth is a planet and the Sun is a star. The sun Earth is a planet and the Sun is a star. The sun produces light. The Earth supports life. produces light. The Earth supports life.

LOL: Bouncing LightLOL: Bouncing Light

Produce mean to makeProduce mean to make

The Sun produces lightThe Sun produces light

The flashlight produces lightThe flashlight produces lightOur mirrors did not produce light the Our mirrors did not produce light the

reflected lightreflected lightA mirror is a reflector of lightA mirror is a reflector of lightThe moon is a reflector of lightThe moon is a reflector of light

LOL: Bouncing Light Cont.LOL: Bouncing Light Cont.

LOL: Bouncing Light ContLOL: Bouncing Light Cont

LOL: MOONLOL: MOON

The moon has a pattern of phases that The moon has a pattern of phases that can be recorded and observedcan be recorded and observed

A A Lunar Month Lunar Month is the 29 ½ days it takes is the 29 ½ days it takes the moon to go through all of its phasesthe moon to go through all of its phases

The moon is made mostly of rockThe moon is made mostly of rockWe only see one side of the moon We only see one side of the moon

because the moon rotates at about the because the moon rotates at about the same pace as the Earth.same pace as the Earth.

The moon is Earth’s SatelliteThe moon is Earth’s Satellite

LOL: Moon Cont.LOL: Moon Cont.