earth science rocks! warm up march 26
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Earth Science Rocks! Warm up March 26. Use the table below to answer the question . This table shows data for major characteristics of the nine planets in the solar system. One revolution – the time to make one complete trip around the Sun O ne rotation - the time - PowerPoint PPT PresentationTRANSCRIPT
Earth Science Rocks!
Warm up March 26 Use the
table below to answer the question.
This table shows data for major characteristics of the nine planets in the solar system.
One revolution – the time to make one complete trip around the Sun
One rotation - the time required to make one complete
turn on its axis.
QUESTION: Which of the following
planets has the shortest day measured in Earth time? A. Pluto B. Earth C. Jupiter D. Mercury
Earth Science Rocks!MYP Unit Question: What’s out there?
Area of Interaction: Human Ingenuity
Learner profile: Risk Taker
Standard: Explore current scientific views of the universe and how those views evolved.
Earth Science Rocks!Learning Target:
Today I’m learning about comets, asteroids, and meteors because they are similar.
Opening: Where are we located in the universe?
Work Session: Notes: Comets, Meteors, Asteroids
Closing: Venn Diagram
Our Solar System is part of the Milky Way Galaxy
Where arewe located?
You are Here
Picture of the Milky Way from Earth
Picture of the Milky Way from Earth
Picture of the Milky Way from Earth
WHAT ELSE IS OUT THERE?Asteroids,
Meteors, and Comets
Pieces of debris left over from the formation of the solar system.
Too small to be considered a planet
The asteroid Vega imaged by NASA's Dawn spacecraft
Asteroids
Asteroids
Composition:
Rock fragments and metal
AsteroidsLocation: Between
Mars and Jupiter.
They orbit the sun
Asteroids Characteristics:
Small, planet-like bodies
Asteroids Examples:
The Asteroid Belt
Meteors, Meteoroids, Meteorites
Composition: Pieces of rock
or iron that enter Earth’s
atmosphere.
Meteors: Any asteroid that enters Earth’s atmosphere.
Meteorites: The remnants of a meteor that reach the Earth’s surface
Meteors, Meteoroids, Meteorites
Location: They fall all over Earth; come from
within our solar system
Meteors, Meteoroids, Meteorites
Characteristics:Produces a streak of light
Come from comets or asteroids
Meteors, Meteoroids, Meteorites
Examples: Leonid Meteor shower in November
Hoba: The World's Largest Meteorite
Discovered by a Farmer Plowing His FieldIn 1920, a farmer was plowing a field near Grootfontein, Namibia when his plow suddenly screeched to a halt. Curious about what he had run into he dug in the soil to find a large piece of metal. The large metal mass quickly attracted the attention of scientists and others, who identified it as a meteorite and removed the soil around it. 66-ton iron meteorite - the largest single meteorite ever found and the largest piece of iron ever found near Earth's surface.
Campo del Cielo
Chaco, Argentina37 tons
2nd Largest Meteorite
in the world
The Cape York Meteorite
3rd Largest Meteorite in the U.S. – 31 tons
4th Largest Meteorite in the World28 tons
Armanty, Xinjiang, China
Willamette Meteorite
Largest meteorite found in America –15 tons
Can you imagine watching
these things hit the ground??
Meteor over Milwaukee, Wisconsin April 10, 2010
Comets Composition: Chunks of ice and dust
Comets Location: Orbit the sun
in a long narrow ellipse.
Come from
the Kuiper belt
Comets Characteristics: Millions of
kilometers long. When near the sun,
a “tail” forms of gas and dust that always
points away from the
Sun.
Comets Examples:
Halley’s Comet (every 76 years)
The next one will be in 2061
Shoemaker-Levy
shoemaker-levy comet
Comet PanSTARRSNorthern Hemisphere – March 2013
March 28, the comet sets before the moon rises at around 9:30 p.m. (Next trip: 10,000
Look to the left of the moon
Heading toward the sun – November 2013.Comet ISON on the morning of December 10, 2013.
Comet Ison
Compare/ContrastAsteroid, Meteors, and Comets
Big Dipper
Moon