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Solar System

TermDefinition
magnify to make an object appear larger
telescope makes objects appear larger,brighter and sharper
planet A large body in space that orbits a star.
inner planets the planets closest to the sun-Mercury, Venus, Earth, Mars.
outer planets The planets farthest from the sun -Jupiter,Saturn,Uranus,and Neptune.
solar system the sun, planets, moon, and other objects that orbits the sun
sun the nearest star to Earth
orbit to move in a path around an object
gas giant a very large planet made up mostly of gases
axis an imaginaty line through the center of an object
rotate to turn on an axis
equator is a imginary line that circles the earth halfway between the north and south poles
revolve to move in a path around another object
season one of the four parts of the year-spring, summer, fall, and winter
phases of the moon the different ways the moon looks throughout the month
crescent moon The phase of the Moon when a thin part of the Moon's near side is sunlit
full moon the phase of the Moon when all of the Moon's near side is sunlit
new moon The phase of the Moon when the Moon's side appears totly dark
waxing moon the phases of the Moon when an increasing amount of the Moon's near side is sunlit
waning moon The phases of the moon when a decreasing amout of the Moon's near side is sunlit
quarter moon The phase of the moon when half of the Moons near side is sunlit
constellation a group of star that forms a animal, person or object
star a ball of hot gases that gives off light and other forms of energy
How long does it take for Earth to complete it's orbit around the sun? 365 days
Earth's rotation on its axis causes day and night
Approximately how long does it take the Moon to revolve around the Earth? 28 days
What are the 4 categories of star identification? pattern, brightness, color, number
Which star identification uses surface temperature? brightness
If it is summer in the southern hemisphere that the northern hemisphere must be tilted towards or away from the sun? away from the sun
The sun rises in the... east
The suns sets in the... west
Name the planets in order. Mercury Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
In 1609 and Italian scientist named Galileo was the first person to see Jupiter's moons and watch them orbit. How was he able to see Jupiter's moons? He used a telescope to look at Jupiter
AS Earth revolves around the sun, the North Pole tilts toward or away from the sun. Explain a season that occurs in the Northern Hemisphere using the North Pole tilt. When the North Pole tilts away from the sun, it is winter. (OR) When the North Pole tilts towards the sun, it is summer.
A student observes a pattern of objects in the sky each night for a week. He notices that one of the objects in the pattern moves to a different place each night, but the rest of the pattern does not change. Explain these observations. The moving object is a planet, and the other objects are stars.
When observing the night sky, why do come stars look brighter than others? The brighter the stars are closer and bigger.
A student has two Styrofoam balls. One ball represents the sun. The other represents the earth. How would he use the balls to model the change in day and night length throughout the year? tilt and rotate the model of the earth; revolve the model of the earth around the model of the sun.
Astronomers use many different pieces of equipment to study space: optical telescopes on Earth, space telescopes, and space probes are a few. Why would astronomers use a space probe instead of a telescope? Probes send data back to Earth for scientist to study, not just images.
Why are we able to see planets and stars in the sky at night? The planets reflect from the sun, while stars produce their own light.
Describe how the cycle of day and night occurs. The Earth makes one complete rotation every 24 hours
What would happen on Earth if there was not an axial tilt? There would be no seasons.
When North America receives less of the Sun's direct light. What season is it during this time? Winter
How does the Earth's axial tilt cause the seasons? Sun shines on the Earth changes as the Earth revolves around the sun.
Which position of the earth corresponds to an equal length of day and night in both hemispheres and why? When the sunlight directly falls on the equator.
A teacher displayed the poster of the sun and planets in the solar system. What was the teacher trying to model to the students? the size and relationship between the sun and planets
Created by: ctabor