Earths layers
What is the earths outer layer?
Crust
What is an non existent planet?
pluto
What major group of rock is formed by magma or lava cooling?
Igneous
Name the moon phase for a solar eclipse
New moon
Name 2 things that would be different, if we did not have a moon.
The days would be only 12 hours instead of 24, the tides would be only 40 percent of the strength that they are now.
What is the center of the earths atmosphere?
Inner core
What is the third planet from the sun?
What is molten rock material called?
Magma
Name the moon phase for lunar eclipse
Full moon
Explain the difference between revolution and rotation.
Rotation is the Earth rotating on its axis, revolution is the planets orbiting the sun.
The ozone layer, which absorbs ultraviolet radiation from the sun, exists in the layer of the atmosphere called the ____________________.
stratosphere
What is the closest planet to the sun?
Mercury
What do we call rocks which have formed from the cooling and solidification of molten material?
Igneous rocks
Why do we see moon phases
Because the moon orbits Earth
Name the force that keeps the Earth orbit around the sun.
Gravity
In the mantle, the movement of molten material caused by differences in temperature and density is known as ______________________.
convection currents
what is the most popular mnemonic device to know the order of the planets?
My (Mercury) Very (Venus) Educated (Earth) Mother (Mars) Just (Jupiter) Served (Saturn) Us (Uranus) nachos (Neptune).
Rock that has been changed by heat and pressure beneath the surface is known as _________________.
Metamorphic
What does the Moon rotate?
The earth
Explain the difference between a solstice and an equinox
equinox is when it is equal to the sun and solstice is when its tilting away from the sun.
The layer of the atmosphere closest to Earth’s surface where weather occurs is the_________?
troposphere
What holds Earth in its orbit?
The gravitational pull of the Sun.
what is the hardest known material?
diamond.
What happens when the Earth passes directly between the moon and the sun?
Lunar eclipse
Explain how the moon formed.
An object collided with Earth, the impact ejected vaporized rock that formed ring around the Earth, that eventually gravity caused it to clump together and formed the Moon..