Today

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Todays Objectives

• 1. Collect HW
• 2. Question of the Day
• 3. Inner Planets Activity
• 3. Discussion on Observing the Solar System Part
  2
• 4. The Universe The Inner Planets

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Question of the Day 4/28/10

• If the sun makes up 99.8 of the solar system and
  the more massive an object is the more gravity it
  has, why arent Mercury and Venus pulled into the
  sun?
• The Law of Universal Gravitation states that all
  objects in the universe have a gravitational
  attraction towards each other. Therefore, the
  other planets gravity would be acting on Mercury
  and Venus in the opposite direction to prevent
  them from being pulled into the sun.

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Welcome to Science 12/7

• Get HW out but do not turn it in. On your paper,
  write down as many facts about the planets as you
  can.
• Todays Schedule
• 1. Go over HW
• 2. The Planets
• 3. Planet Packet Activity

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What do you know about the planets?
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Olympus Mons

• Olympus Mons is the largest Volcanic mountain in
  the Solar System. It is 600 km across and 27 km
  high! And you thought Mount Everest was tall!

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Saturn

• That Saturn has such a low density that it would
  float if put in water!

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Space Volcanoes

• That some volcanoes on Jupiter's moon Io eject
  material at speeds of up to 1km/second! This is
  about 20 times faster than the volcanoes here on
  Earth!

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The Great Red Spot

• The Great Red Spot. This is a huge, high storm
  that has been swirling around Jupiter for
  hundreds of years. Its easily visible from
  telescopes here on Earth, and even in larger
  backyard telescopes.

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Poor Pluto

• Pluto which is a dwarf planet takes 248 years to
  orbit the sun.

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Planets Packet

• Objective To discover new information about the
  planets using books and the internet.
• Packet is due on Friday, Dec. 10.
• Solar System, Solar System Information, Facts,
  News, Photos -- National Geographic
• The Solar System - Astronomy For Kids -
  KidsAstronomy.com

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Welcome to Science 12/9
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The Inner Planets

• 4 Planets closest to the sun.
• Terrestrial planets- Small, dense, and have rocky
  surfaces like Earth

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The Inner PlanetsMercury

• Planet closest to the sun.
• About the size of our moon.
• Heavily cratered surface.
• Virtually no atmosphere
• 430 degrees C at day, -170 degrees C at night

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The Inner PlanetsVenus The inner planets,
Mercury and Venus

• Earths Twin size and mass are similar
• A day is longer than a year
• Sun rises in the west sets in the east.
• Atmospheric pressure is 90 times greater than
  Earths
• Hottest planet- 460 degrees C. Melt lead

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The Inner PlanetsEarth

• Only planet to have liquid water at the surface.
• Only planet to have an atmosphere rich in oxygen.
• Only planet that life has been discovered on.

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The Inner PlanetsMars

• Polar Ice Cap
• red planet made up of iron rich rocks
• Atmosphere 95 carbon dioxide
• -140 degrees C to 20 degrees C.
• Scientists think liquid water once flowed over
  the surface The universe (S1) 2- Mars, the red
  planet

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The Outer Planets

• The 4 planets farthest from the sun.
• Much larger more massive than the inner planets.
• They do not have solid surfaces Gas Giants

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The Outer Planets

• All gas giants have moons.
• All gas giants have rings.
• If they are made of gas why doesnt the gas drift
  into space?

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Jupiter

• The largest and most
• massive planet.
• Great Red Spot-
• Storm larger than the
• entire Earth.
• Dozens of moons.
• The universe (S1) 4- Jupiter, the giant planet

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Saturn

• Second largest planet.
• Gives off more energy than it receives from the
  sun.
• Avg. density is less than water.
• Ice and rock make up Saturns rings.

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Uranus (Yoor uh nus)

• 1. Methane gas in the
• atmosphere
• 2. 90 degree tilt caused
• by massive collision.
• 3. At least 25 moons

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Neptune

• Cold, blue planet
• Slowly shrinking
• Clouds and storms that come and go
• outer planets - Google Video
• The universe (S1) 11- The outer planets

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Pluto the Outcast

• Only outer planet to have a solid surface.
• Smallest Planet (Smaller than our moon)
• Plutos moon, Charon, is about half the size of
  Pluto.
• Its lack of size have led many scientists to
  question if it should really be considered a
  planet.

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Planet Acronym

• M V E M J S U N
  P
• y e x o u e
  s I i
• r c t s n
  n z
• y e h t t
  e z
• l e
  a
  
• l r
  s
  
• e
• n
• t
• Hulu - The Universe Mercury and Venus - The
  Inner Planets - Watch the full episode now.

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The Inner Planets

• inner planets - Google Video

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Todays Objectives 4/30/10

• 1. Question of the Day
• 2. Solar System Activity
• 3. Continue Research on Projects

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Question of the Day

• Observe the image below. What happened to Pluto
  in 1989?
• Pluto and Neptunes orbit crossed paths and
  Neptune became the
  furthest planet from the
  sun.

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Solar System Activity

• Solar System Activity WS
• Identify each planet. Describe the planets size,
  rotation, revolution, number of moons, and
  atmosphere.
• Accurately color the planets and the sun. Add any
  characteristics to a planet such as moons or
  rings.
• Answer the questions on the back of the sheet and
  fill in the charts.

• Solar System Activity PPT
• 1. Create a 9 slide PPT presentation. Start with
  the planet closest to the Sun. On each slide you
  need a picture of the planet. Describe the
  planets size, rotation, revolution, distance
  from the sun, number of moons, and atmosphere.
• 2. Create an additional 4 slides in which you
  answer the questions on the back of the WS.

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Earth

• Earth is the 3rd planet from the sun and the 5th
  largest planet. A rotation takes 24 hours and a
  revolution is 365 days. Earth has 1 moon and the
  atmosphere is 79 Nitrogen and 20 Oxygen. Its
  avg. distance from the sun is 93 million miles

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Outer Planets Activity

• 1. You will work in a group of 3 people.
• 2. Assignments writer, internet researcher, book
  researcher.
• 3. There are 6 stations. One for each outer
  planet and one for the moons of the outer planet.
• 4. Your group will start at one station and will
  have 1-2 min. to list 3 facts about that planet.
• 5. After the time is up all groups will rotate to
  the next station.
• 6. A point will be awarded for each correct fact
  that your group writes.