Which planet does it orbit? | | |Pictures of the moon Europa show large cracks. What causes these |Tectonic stress | |cracks? | | |Which moon is the largest satellite in the solar system? Which |Ganyemede, Jupiter
o B. Discover images and characteristics related to the Barringer Crater in Arizona: How large was the meteorite, how large is the crater, when did the impact occur, and how fast was the meteorite moving when it hit Earth’s surface. o C. Find at least three large craters on Earth that illustrate the potential magnitude of kinetic energy that is possible at impact. List where the location of the impact, the size of the meteorite, and when the impact occurred. Introduction One look at the surface of the Moon should convince you that "empty space" is not so empty after all.
He believed that all of the continents were once joined together, forming a super-continent called Pangaea. These plates are thought to float on the underlying semi-molten asthenosphere and are moved by convection currents that derive their heat from the earth's crust. It states that this process isi continous and forms new land along the boundaries where the plates move apart - known as constructive margins - and destroys older crust where the plates are moving together - destructive margins. Later evidence also supported this theory - fossilised remains of a dinosaur, the mesosaurus, were discovered on the coasts of Brazil and Gabon. Wegeners ideas were proved even further, increasing our knowledge of tectonic events.
This causes the comet to brighten enormously. Sometimes this develops a brilliant tail, extending millions of kilometers into space. Even as the comet recedes again, the tail is directed away from the sun. What are these spectacular comet tails composed of? Comet tails are made up of simple ionized molecules, including carbon monoxide and dioxide.
limb_flare_sm.jpg (5710 bytes)Solar flares are tremendous explosions on the surface of the Sun. In a matter of just a few minutes they heat material to many millions of degrees and release as much energy as a billion megatons of TNT. They occur near sunspots, usually along the dividing line (neutral line) between areas of oppositely directed magnetic fields. The biological effect. There is a growing body of evidence that changes in the geomagnetic field affect biological systems.
The nebular hypothesis suggest that: a. all bodies in the solar system formed from an enormous gas cloud. b. Earth’s moon is an asteroid captured by the Earth’s gravity. c. galaxies such as the Milky Way form independent of one another. d. the Earth was formed a cosmic explosion, a “big bang”. e. the moon is derived from a protoplanet.
Prominences 1. Prominences are immense clouds of glowing gases that erupt from the upper chromosphere. 2. The loops or arches of gases may shoot as high as 100 000 kilometres from the surface of the Sun. This allows some of the surface gases, mainly hydrogen and helium, to escape into space.
Which of the following planets is NOT a gas giant? a. Earth b. Jupiter c. Saturn d. Uranus 16. The sun gets its energy from a. burning fuel b. nuclear fusion c. shrinking due to gravity d. convection 17. The number of on any planet can be used to estimate how old the surface is.
Describe two ways in which gravity has a part in the life-cycle of a star- Gravity pulls the dust and gas in the nubula together, and compresses them so much that the inside becomes hot enough for fusion reactions to start. Gravity also pulls the remains of a red giant together after fusion reactions have stops. This forms a white dwarf. Theories about the universe- 1. What does red shift tell s about distant galaxies?
Survival. Achieving this can bring out the worst in people. When the world turns around like it did for Miranda, life would never be the same. An unpredicted disaster has taken a toll on the world. A meteor struck the moon and moved it closer into orbit changing centrifugal forces and causing worldwide tidal waves, earthquakes, volcanic eruptions, and that’s just the start.