Presented by:Presented by:

Laura AkersLaura Akers

Earth Science – Grade 4Earth Science – Grade 4

Table of ContentsTable of Contents• Cover slideCover slide• Our Solar System/ PlOur Solar System/ Pl

anetsanets• Size of Our PlanetSize of Our Planet• Planets’ Distance froPlanets’ Distance fro

m the Sunm the Sun• Length of Time it TakLength of Time it Tak

es the Planet to Revoes the Planet to Revolve Around the Sunlve Around the Sun

• Number of Moons EaNumber of Moons Each Planet Hasch Planet Has

• ConstellationsConstellations• The Big DipperThe Big Dipper• The Little DipperThe Little Dipper• OrionOrion• Constellations for EaConstellations for Ea

ch Seasonch Season WinterWinter SpringSpring SummerSummer FallFall

• Our Future ScientistsOur Future Scientists

Our Solar SystemOur Solar System

Pluto

Neptune

Uranus

Saturn Jupiter

Mars

Earth

Venus

Mercury

Sun

There are 9 planets in our Solar System

Actual Size of the Actual Size of the PlanetsPlanets

How Far is Each How Far is Each Planet from the Sun?Planet from the Sun?

0

1000

2000

3000

4000

Million Miles

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto

Names of Planets

Planets' Distance from the Sun

Series158

67

93

14

2

48

4

88

7

17

84

27

94

36

74

How Long Does It Take Each How Long Does It Take Each Planet to Revolve Around the Planet to Revolve Around the

Sun?Sun?Mercury

87.9 Earth Days

Neptune164.8 Earth YEARS

Pluto247.7 Earth YEARS

Venus224.6 Earth Days

Earth365.2 Earth Days

Mars686.9 Earth Days

Jupiter11.8 Earth YEARS

Saturn29.4 Earth YEARS

Uranus84 Earth YEARS

The

Sun

Which Planet Has the Most Which Planet Has the Most Moons?Moons?

Number of MoonsMercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

Pluto

Saturn

18

Jupiter

18

Uranus

15

Neptune

2

Mars

2

Pluto

1Earth

1 Mercury

0Venus

0

ConstellationsConstellations• Constellations are Constellations are

totally imaginary totally imaginary objects.objects.

• Made up by poets, Made up by poets, farmers, and farmers, and astronomersastronomers

• Purpose of Purpose of constellations are constellations are to tell which stars to tell which stars are whichare which

TheThe bigbig dipperdipper• Scientific name is Ursa Scientific name is Ursa

Major; commonly known as Major; commonly known as Big BearBig Bear

• One of the most easily One of the most easily found constellations in the found constellations in the skysky

• The Big Dipper was also a The Big Dipper was also a very important part of the very important part of the Underground Railroad Underground Railroad when slaves were escaping when slaves were escaping to the North. to the North.

• There were songs spread There were songs spread among the slave population among the slave population which included references which included references to the "Drinking Gourd”. to the "Drinking Gourd”.

The The LittleLittle Dipper Dipper• Scientific name is Scientific name is

Ursa Minor; Ursa Minor; commonly known as commonly known as The Lesser BearThe Lesser Bear

• Most common star in Most common star in the Little Dipper is the Little Dipper is called Polaris or the called Polaris or the North StarNorth Star

• If you stood at the If you stood at the north pole, Polaris north pole, Polaris would be almost would be almost directly overhead directly overhead

ORIONORION• Also known as The HunterAlso known as The Hunter• He is accompanied by his He is accompanied by his

famous dogs: Canis Major famous dogs: Canis Major and Canis Minorand Canis Minor

• Hanging down from Hanging down from Orion’s belt is his sword Orion’s belt is his sword that is made up of three that is made up of three fainter stars.fainter stars.

• The central star of the The central star of the sword is really not a star sword is really not a star at all. It’s called the at all. It’s called the Great Orion Nebula.Great Orion Nebula.

• It’s the most studied It’s the most studied region by astronomers.region by astronomers.

Which constellations can you Which constellations can you see in each season? see in each season? WinterWinter SpringSpring SummeSumme

rrFallFall

CancerCancer LibraLibra AquariusAquarius AriesAries

GeminiGemini ScorpiusScorpius CapricornuCapricornuss

CassiopeiCassiopeiaa

LeoLeo Ursa Ursa MajorMajor

SagittariuSagittariuss

PiscesPisces

OrionOrion VirgoVirgo CepheusCepheus TaurusTaurusCanis Canis

Major and Major and MinorMinor

HerculesHercules PegasusPegasus CetusCetus

ResourcesResources• http://amazing-space.stsci.edu/http://amazing-space.stsci.edu/• http://www.artyastro.com/main.htmhttp://www.artyastro.com/main.htm• http://www.dustbunny.com/afk/http://www.dustbunny.com/afk/• http://school.discovery.com/schoolahttp://school.discovery.com/schoola

dventures/spacestation/dventures/spacestation/• http://fourmilab.ch/earthview/vplanhttp://fourmilab.ch/earthview/vplan

et.htmlet.html• http://earth.jsc.nasa.gov/sseop/efs/http://earth.jsc.nasa.gov/sseop/efs/• http://kids.msfc.nasa.gov/http://kids.msfc.nasa.gov/• http://observe.arc.nasa.gov/nasa/http://observe.arc.nasa.gov/nasa/

core.shtml.htmlcore.shtml.html• http://www.popsci.com/popsci/http://www.popsci.com/popsci/• http://liftoff.msfc.nasa.gov/http://liftoff.msfc.nasa.gov/

academy/astronauts/wannabe.htmlacademy/astronauts/wannabe.html• http://www.space.com/http://www.space.com/• http://starchild.gsfc.nasa.gov/http://starchild.gsfc.nasa.gov/

docs/StarChild/StarChild.htmldocs/StarChild/StarChild.html• http://school.discovery.com/http://school.discovery.com/

schooladventures/universe/schooladventures/universe/• http://pds.jpl.nasa.gov/planets/http://pds.jpl.nasa.gov/planets/• http://www.exploratorium.edu/http://www.exploratorium.edu/

ronh/weight/index.html ronh/weight/index.html

Check out this Check out this video!video!

Our Future Scientists!Our Future Scientists!

• http://www.kidsastronomy.com/index.htmhttp://www.kidsastronomy.com/index.htm