Solar system
What is scaling?
Diameters/distances of objects in space can sometimes be too big to represent on paper, so we must scale them down.
Comets:
Dirty snowball, have orbits, composed of head, tail, coma, nucleus
Geocentric:
Earth at center of solar system
What are seasoned caused by?
TILT of the Earth on its axis
Which way does the earth tilt in the winter?
Earth TILTED away from the Sun in winter (northern hemisphere) = less direct rays = cooler temps
Give an example of scaling
Ex. If given the scale 1cm = 500cm and you were given Planet X diameter is 1000, you would divide 1000 by 500 and get a scale of 2cm.
Meteorites:
rock that has hit the Earth’s surface
Heliocentric:
Sun at center of solar system
True or False: Seasons are also caused by Earth revolving around the Sun.
TRUE
Is the heliocentric a evidence based fact?
Yes
Sun at center of solar system **We have evidence to support this**
What is a Period of Revolution
Farther from the sun, takes longer to revolve around it
Meteor:
Streak of light in the sky (fast) burning up in our atmosphere
Why does the sun move across the sky?
Sun appears to move across the sky- due to Earth’s ROTATION
True or False: Seasons in Northern and Southern hemispheres are opposites
TRUE
What are the two Model of the Solar System?
Geocentric and Heliocentric
What is a Period of rotation
Faster the planet spins, shorter the day
Meteoroid:
Small piece of rock or dust in space
What is 1 year?
1 complete REVOLUTION (going around the Sun)= 1 year
TRUE OR FALSE: Seasons are caused by distance from the sun
FALSE
Is the sun moving or the earth?
Sun is not actually moving, we are
True or False: Scaling means if something is too SMALL you scale it down
FALSE
Asteroid:
too small to be considered a planet. Located between Jupiter and Mars.
How many hours is 1 rotation? Where does the sun rise and set?
24 hours = 1 rotation
Sun rises in the East and sets in the West
Which way does the earth tilt in the summer?
Earth TILTED toward the Sun in summer
Where is there an asteroid located?
Between Jupiter and Mars