A meteorite hitting Earth could have major environmental consequences depending on where it lands. If it hits land, it could cause earthquakes, lower global temperatures by blocking the sun with dust for months, and disrupt power systems. If a meteorite hits the ocean it could trigger tsunamis across the ocean as well as hurricanes, again block the sun for months, cause earthquakes, and disrupt power. On average, 38,000 meteorites have hit Earth, with impacts concentrated at the poles. The meteorite that formed the Grand Canyon was around 30 meters wide and weighed 100,000 tons, entering the atmosphere at 20 km per second.
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Meteorites by James
1. Big Question
What would
happen if a
meteorite hit
earth??
By James
2. It is a Shooting star and is also known as a
falling star
It is ike a fire ball
38,000 meteorites have hit earth
They hit in the North and South pole a lot
Hit the grand canyon
Its size was 30 metres
It weighed 100,000 tons
Its speed was 20 km per second
3. If a Meteorite hit the land it could cause
Dust-Cut off sunlight for Months
Make a crack in the earth
Lower the temperature of the whole world
Cause an earthquake
Cut out power
4. What would happen if a meteorite hit the sea?
Tsunamis would hit in every direction
It could cause hurricanes or cyclones bigger
than the pacific ocean
Cut out power
Block the sun for Months (closer to sand
bigger the risk)
Crack the earth
Cause earthquakes
5. When a meteorite hits an asteroid in the asteroid
belt it will speed towards a planet
As it breaks through the atmosphere it is set on fire
Meteorites try to hit earth
They may break up and become a meteor shower
Otherwise it is sent back and becomes space junk
http://youtu.be/ZxmuB66iAiQ
6. Meteoroid: A small particle from an asteroid or comet
orbiting he Sun.
Meteor: A meteoroid that is observed as it burns up in
the Earth's atmosphere - a shooting star.
Meteorite: A meteoroid that survives its passage
through the Earth's atmosphere and impacts the
Earth's surface.
http://www.youtube.com/
watch?v=6qVw1nILDBc
11. A meteor strike makes a
giant crater
A meteor strike in
Russia 2013