1.1. List the 9 planets in our solar system. List the 9 planets in our solar system.

MercuryMercuryVenusVenusEarthEarthMarsMarsJupiterJupiterSaturnSaturnUranusUranusNeptuneNeptunePluto (dwarf planet)Pluto (dwarf planet)

2. List each planet and the 2. List each planet and the main facts about each. main facts about each.

MercuryMercury• 2nd smallest planet

• no atmosphere

• craters

• smooth terrain

• deep slopes

• 1 rotation = 59 days

• Temp: 800 F to -279 F

VenusVenus

• Orbits sun every 255 days

• Thick clouds

• Volcanic activity

• Tectonic activity

• 80% plains covered by volcanic flows

• Temp: 887 F

• Atmosphere is 97% CO2

EarthEarth• Circumference at N and S poles: 24,901 miles

• Distance from sun: 93,020,000 miles

• Distance from moon: 238,857 miles

• Highest elevation on earth: Mt. Everest, Asia, 29,035 feet

• Highest mountain from base to peek: Mauna Kea, Hawaii, 33,480 feet

• Lowest elevation on land: Dead sea, 1369 feet below sea level. Israel/Jordan

• Deepest point in the ocean: Mariana trench, Western Pacific Ocean, 35,840 feet deep.

• Highest recorded temperature: 135.8 F

• Lowest recorded temperature: -128.5 F

• 70.8% water, 29.2% land

• Age of earth: 4.6 billion years

• Atmosphere content: 77% nitrogen, 21% oxygen, traces of argon, carbon dioxide, water.

• Rotation on axis: 23 hours, 56 minutes, 04.09053 seconds

• Revolution around the sun: 365.2425 days

Mauna Kea

Mt. Everest

The Dead Sea

Mariana Trench

MarsMars

• The red planet

• White polar caps

• Large dust storms

• Hurricane force winds

• Large volcanoes

• Large canyons

• Temp: - 94 F to – 148 F

JupiterJupiter

• largest planet

• 1 rotation = 10 hours

• great red spot – a cyclonic storm

• hydrogen-helium atmosphere

• winds cause light and dark bands

• immense gravity

• gigantic ocean of liquid hydrogen

• 28 moons

SaturnSaturn

• 29.46 years to make one revolution around the sun

• Rings made of ice and rock particles

• Winds up to 637.5 mph

• Large cyclonic storms

• 31 moons

UranusUranus

• Rotates on its side

• Has rings

• Takes 84.01 years to make one revolution around the sun

NeptuneNeptune

• Winds up to 625 mph

• Great dark spot – a large rotating storm

• 13 moons

PlutoPluto

• 248 years to orbit the sun

• classified as a dwarf planet

• Average temp: 346 F

• Dirty ice ball

3.3. List the terrestrial planets.List the terrestrial planets.

MercuryMercuryVenusVenusEarth Earth MarsMars

4. What does the term, “terrestrial” mean?4. What does the term, “terrestrial” mean?

Earth-like

5.5. List the jovian planets. List the jovian planets.

Jupiter

Saturn

Uranus

Neptune

6.6. What does the term, “jovian” mean?What does the term, “jovian” mean?

Jupiter-like

7. What are the terrestrial planets made of?7. What are the terrestrial planets made of?

Rocky and metallic substances

8. What are the jovian planets made of?8. What are the jovian planets made of?

Gases – hydrogen and helium

Ice

9. Nebula9. Nebula

Cloud of dust and gas in space

10.10. What is the nebular theory?What is the nebular theory?

The sun and planets formed from a rotating disk of dust and gases

Nebular TheoryNebular Theory

11.11. PlanetesimalsPlanetesimals

Small, irregular shaped bodies resulting from colliding bits of matter.

PlanetesimalsPlanetesimals

12.12. How did the distance from the How did the distance from the sun affect the creation of planets?sun affect the creation of planets?

• Planets closer to the sun formed from materials with higher melting points – metals and silicate minerals.

• Planets further from the sun formed with solid materials and ices.

13.13. AsteroidAsteroidSmall rocky bodies

14.14. CometCometPieces of rocky and metallic materials

15.15. ComaComaThe glowing head on a comet

16.16. MeteoroidMeteoroidA small solid particle traveling through space.

17.17. When is a meteoroid When is a meteoroid called a shooting star?called a shooting star?

When it enters the earth’s atmosphere.

18.18. MeteorMeteor

A meteoroid that does not enter the earth’s atmosphere.

19.19. MeteoriteMeteoriteA meteoroid that reaches the earth’s surface.