By: Liz Moran S4E1: Students will compare and contrast the physical attributes of stars, star...
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Transcript of By: Liz Moran S4E1: Students will compare and contrast the physical attributes of stars, star...
By: Liz Moran
S4E1: Students will compare and contrast the physical attributes of stars, star patterns, and planets.
S4E2: Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon.
What is the Solar System?The solar system
is a group of objects in space that move around a central star (sun).
Includes planets, asteroids, moons and comets
Star Patterns
Constellations are names for groups of stars that appear to form shapes in the sky. They were given their names many hundreds of years ago to help us remember which stars are which. We use constellations to divide up the sky; finding one can help us find another because constellations move so slowly that, in our lifetime, they will always be found in about the same place.
The Sun – The Biggest Star
The biggest star in the solar system is the sun.
The sun is the largest object in the solar system.
The sun is more than 1 million kilometers long.
The Nine Planets in our Solar System
Earth
Venus
Mercury
Pluto Neptune
Uranus
Saturn
JupiterMars
Nine Planets
Planet TemperaturesSince all planets
revolve around the sun…they are all different distances away.
The farther the planet is away from the sun, the colder it will be.
Planet Temp. (C)
Mercury 150
Venus 450
Earth 0
Mars -50
Jupiter -150
Saturn -190
Uranus -210
Neptune -230
Pluto -250
Planet’s Distance from the Sun
Distance from the Sun (millions)
36 67.2 93 141.6483.6
886.7
1,784
2794.4
3674.5
0
500
1000
1500
2000
2500
3000
3500
4000
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
MercuryClosest planet to the sunAbout the size of the Earth’s moon
No atmosphereMercury virtual tour
EarthOur wonderful planet is the third planet from the sun
Has water and volcanoesOnly planet with known life
MarsFourth planet from the sunKnown as the red planet
because of the color of its soilHas the largest volcano in the
solar system…Mons OlympusMars virtual tour Click here to go
back to the nine planets site
JupiterFifth planet from the sunLargest planet in the solar
system (3 Earths would fit inside of it)
Very active gas atmosphere, almost like a hurricane
Jupiter virtual tour
SaturnSixth planet from the sunKnown for it’s rings, which can be seen from Earth with a telescope
Saturn virtual tour
UranusSeventh planet from the sunMost distant planet you can see without using a telescope
Has faint ringsUranus virtual tour
PlutoPlanet farthest away from the sun
Smallest planetRocky surface surrounded by frozen gases
Pluto virtual tour
Number of Moons on Each Planet
Each planet has a different number of moons. Mercury and Venus have zero.
Number of Moons per Planet
1 2
18
18
15
2 1 Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Phases of Earth’s Moon The moon does not give
off its own light. Instead, it reflects light from the sun. Half of the moon always faces the sun and so is always lit. As the moon moves through it’s orbit, different amounts of its lit half can be seen from Earth. That’s why the moon seems to have different shapes or phases. The moons cycle of phases takes about 28 days to complete.
Phases of the Moon Diagram (Earth is in center; white part of each moon is the visible part).
Space Exploration Since the planets and stars are so
far away, we need special tools to view them. We can use telescopes from Earth, but to view them up close we need to go closer.
Astronauts can explore the universe up close using space probes to examine different planets and the Earth from afar. telescope
Space ship launching