Space

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Space

• Grade 6 Science

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Solar System

• There are 9 planets in our solar system.
• These planets revolve around the closest star the
  SUN.
• Star hot, gassy object that gives off large
  amounts of LIGHT and Heat

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9 PLANETS

• 1. Mercury
• 2. Venus
• 3. Earth
• 4. Mars
• 5. Jupiter
• 6. Saturn
• 7. Uranus
• 8. Neptune
• 9. Pluto

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Rhyme

• Using the First Letter of each planet..
• make a rhyme to help you learn the planets in
  order from the sun
• Ex. Miss Venus engulfed marshmallows just so
  unicorns never puke

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Size Relationship of the Planets
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Inner Planets
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Outer Planets
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In- Class Assignment

• 1. Collect a piece of construction paper
• 2. Cut out 9 planets (size appropriate) and a sun
• 3. Paste the planets in order from the sun

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SPACE.

• Second Class

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Rocky Planets
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Rocky Planets

• CHARACTERISTICS
• rock and metal
• high densities
• slow rotations
• solid surfaces
• no rings
• few satellites

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Gas Planets
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Gas Planets

• The gas planets are composed of
• hydrogen, helium
• low densities
• rapid rotation
• rings
• lots of satellites.

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9 Planets MIND MAP

• In a pair.
• Create a MIND MAP of one of the planets
• Answer the 10 questions on handout
• Hand in your completed assignment
• Print off two copies! One in each binder!

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• http//www.nineplanets.org/
• http//pds.jpl.nasa.gov/planets/special/planets.ht
  m
• http//starchild.gsfc.nasa.gov/docs/StarChild/sola
  r_system_level1/planets.html

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Third Class

• Asteroids, Comets, Meteoroids
• Movie-

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SPACE

• SATURN

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SATURN

• Distance from the sun- 885 million miles
• Time to orbit sun- 30 years
• Diameter- 75,000 miles
• Moons- 56
• Rings- 7
• Temperature- -285 F (freezing)

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SATURN

• Wind speed 1800 kph
• Saturn is the sixth planet from our Sun.
• It is called the 'jewel of the solar system'
  because of its beautiful rings.
• It is made up mostly of gas, including hydrogen,
  helium and methane. It doesn't have a solid
  surface.

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SATURN

• 1,300,000,000 Average distance between Saturn
  and Earth.
• These super-fast winds, combined with heat rising
  from within the planet's interior, cause the
  yellow and gold bands visible in the atmosphere.
• The rings are believe to be pieces of comets,
  asteroids or shattered moons that broke up before
  they reached the planet. Each ring orbits at a
  different speed around the planet.

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GRAVITY

• Weight versus Mass

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What is Gravity??

• Discuss why Astronauts float in space?
• Describe what it is like?
• What is different between being in space or on
  earth?

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GRAVITY

• Gravity
• Responsible for keeping earth and other planets
  orbiting the sun
• Gravity is a force pulling together all matter
  (which is anything you can physically touch).

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GRAVITY

• When you jump on earth- gravity pulls you back
  down
• How strong the gravity depends on the size of the
  planet
• MOON is smaller than earth- less gravity
• Pull of gravity on the moon is weaker cant
  walk on the moon you float

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DEMONSTRATION

• Drop eggs and book what happens
• which falls faster?
• Discuss Mass.. The amount of mass it has on a
  scale
• Place sand on a scale.. Made up of particles

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List 6 items on the board

• Egg
• Book
• Pen
• Penny
• Shoe
• Eraser
• Rank these items in order of which one will hit
  the ground first

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RANK THE ITEMS

• Discuss the students list
• Ask them to justify why
• Drop another egg and a book!!
• WHICH ONE HITS THE GROUND FIRST?

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RULE

• All objects will fall at the same speed
• Exceptions to the rule some objects are affected
  by air resistance (feather, paper)
• If you drop two items that are heavy and compact
  enough to reduce the effect of air resistance
  they will hit the ground at the same time!

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PENNY ACTIVITY

• Have a student stand with a penny on his shoe
• Lift him slightly off the ground and drop him.
• What will happen to the penny?

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PENNY CONCLUSION

• Penny and student fall at the same speed
• Penny will not lift off the shoe and float
• (thats why you do not lift off the ground in an
  ELEVATOR!!)

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GRAVITY

• WHAT GOES UP MUST COME DOWN ON EARTH
• throw something up in the air
• drop something and it will eventually hit the
  ground!

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CALCIUM LOSS IN SPACE

• We drink milk to strengthen our bones
• Our entire weight on earth is supported by our
  feet
• In space no bones support the other
• Astronauts lose 100mg of calcium a day
• Brain received messages from the weight bearing
  bones to produce more calcium
• In space no weight bearing- decrease in calcium
  production

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Problems with loss of Calcium

• Brittle bones
• Osteoporosis
• Kidney stones
• Takes a long time after the mission to replace
  loss calcium supplies

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Mass versus Weight

• MASS how much matter there is in something.
• WEIGHT weight is determined by how much
  something is pulled by gravity.
• The Mass of an object doesn't change when an
  object's location changes.
• Weight, on the other hand does change with
  location.

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• In one sense weight is about feeling the force of
  gravity pushing us against the surface of our
  chairs and floors.
• Mass is just the number of particles that make us
  up.

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• EARTH
• If we compared two things- they are pulled the
  same by gravity and so the one with more mass
  weighs more.
• SPACE
• the pull of gravity is very small, something can
  have almost no weight.

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CALCULATE YOUR WEIGHT ON THE MOON

• Weigh yourself
• Multiply your weight by .162
• Ex. 80 x .162 13 pounds on the moon

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Weight on Other Planets

• Multiply your weight by the following numbers to
  find your weight on these planets
• Mercury .38
• Venus .91
• Earth 1.00
• Mars .38
• Jupiter 2.36
• Saturn 1.05
• Uranus .94
• Neptune 1.13
• Pluto .07

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Compare the weight

• Jupiter and Neptune have more mass than Earth!
• Exert more of a gravitational pull why you weigh
  more
• Hint a gaseous planet even if larger may not be
  as dense as a smaller planet

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ACTIVITY

• Place the following amount of pennies in each
  beaker
• Mercury 38
• Venus 91
• Earth 100
• Mars 38
• Jupiter 236
• Saturn 1.05
• Uranus 94
• Neptune 1.13
• Pluto 7