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Earth Science #3
N/A
35
Science
7th Grade
05/18/2010

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Cards

Term
Sunspots on the sun: Are they constant?
Definition
No
Term
Two types of telescopes and which has a clearer image
Definition
Refractors and reflectors. Refractor does
Term
Where is the best place for a telescope?
Definition
In the country where there are no city lights.
Term
What makes stars appear to twinkle?
Definition
Our atmosphere.
Term
Which planets have rings?
Definition
Jupiter, Saturn, Uranus, Neptune
Term
Do all planets have a night and a day?
Definition
yes
Term
What does planet mean?
Definition
wanderer
Term
Where is the asteroid belt found?
Definition
In between Jupiter and Mars
Term
What is a radio telescope?
Definition
A device used in radio astronomy for detecting and recording radio waves coming from stars and other celestial objects
Term
What is a sunspot?
Definition
a cooler darker spot which can appear on the sun's photosphere
Term
What is the sun made of?
Definition
Plasma: hydrogen and helium
Term
Does the moon have weather? Why or why not?
Definition
No because it has no atmosphere
Term
Describe the surface of the moon
Definition
Craterous, no wind, dry
Term
How are maria formed?
Definition
They were formed by once volcanoe eruptions that once happened on the moon and then it hardened.
Term
When do eclipses happen?
Definition
A Solar Eclipse can happen during a New Moon.
A Lunar Eclipse can happen during a Full Moon.
Term
Describe the different types of eclipses
Definition
Solar: takes place when the new moon passes between the earth and the sun and the shadow formed reaches the earth
Lunar:occurs when the moon passes behind the earth such that the earth blocks the sun’s rays from striking the moon.
Term
What is the current theory of how the earth was formed?
Definition
The impact theory
Term
When does the moon rise?
Definition
50 mins. later each day
Term
How often are new moon phases?
Definition
Once a month
Term
Describe how stars give off light
Definition
The internal gravity of the star compresses the gasses in the star - creating heat and, eventually, nuclear fusion
Term
Which are hotter, blue or red stars?
Definition
Blue
Term
Looking at a star is a picture of the future or past?
Definition
past
Term
Are galaxies isolated in space?
Definition
no
Term
To which galaxy does out solar system belong to?
Definition
The Milky Way
Term
What is a light year?
Definition
The distance that light travels in a vacuum in one year
Term
What element makes up the largest part of a star?
Definition
hydrogen and helium
Term
Which star does not seem to travel across the sky?
Definition
The North Star or Polaris
Term
Which type of star is most likely to explode into a supernove?
Definition
red giant
Term
A group of stars in a pattern is called what?
Definition
Constellation
Term
What type of galaxy is our?
Definition
A spiral
Term
Where do comets originate?
Definition
The Kupier Belt or Oort Cloud
Term
when do meteor showers occur?
Definition
occur when the Earth collides with a collection of particles orbiting the Sun
Term
Does the Earth always see the same side of the moon?
Definition
yes
Term
Is the distance from the Earth to the moon constant?
Definition
no
Term
What are the advantages of having Hubble in Space?
Definition
We can see things better and further because it is outside our atmosphere
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