Term
____________'s model showed the solar system revolving around the Earth
What was wrong with this model?____________ |
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Definition
Ptolemy
Planets orbit the sun |
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Term
___________'s model showed the planets moving in circles around the sun
What was wrong with this model? ___________ |
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Definition
Corpericus
Planets orbit elliptically |
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Term
| ___________'s model showed the planets revolving around the sun in elliptical orbits |
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Definition
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Term
| The nine planets that move around the sun are different in size, atmosphere, distance from the sun, and number of moons |
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Definition
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Term
| The greeks called the planets ____________ because they appeared to be moving among the groups of stars |
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Definition
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Term
What are AUs?
Why do scientists use AUs? |
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Definition
Astronomical Units
Distances in the solar system are too large to use Kilometers |
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Term
One AU equals the distance between what two objects in our solar system?
How many miles is an AU? |
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Definition
Earth and the sun
93,000,000 miles |
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Term
__________ keeps the planets in orbit?
Who discovered "_________"? |
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Definition
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Term
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Definition
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Term
| Planets are much closer to Earth than any star, so they appear _____________. |
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Definition
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Term
| What objects are in our solar system? |
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Definition
| Asteroids, sun, meteoroids, comets, and planets |
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Term
| How many stars are in our solar system? |
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Definition
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Term
| Do stars create their own light? |
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Definition
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Term
| WHat revolves around the sun? |
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Definition
| Planets, asteroids, comets, and meteoriods |
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Term
| How do objects in the solar system effect Earth? |
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Definition
| They enter earths atmosphere |
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Term
What in our solar system burns up?
What in our solar system hits the ground? |
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Definition
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Term
| What makes life possible on Earth? |
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Definition
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Term
| Why does the sun seem so bright from earth? |
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Definition
| It is so much closer to earth than any other star |
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Term
| What causes the rise and fall of our ocean's tides? |
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Definition
| the gravity from the sun and the moon |
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Term
| What kind of star is the sun? |
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Definition
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Term
| How are stars (and the sun) categorized? |
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Definition
| By its size, temperature, and brightness |
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Term
| How do scientist measure far distances to stars and galaxies? |
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Definition
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Term
| How long is a light year? |
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Definition
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Term
| What does a star's brightness depend on? |
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Definition
| how big, hot, and how far from earth it is |
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Term
| The bigger and hotter a star is, the more light it gives off |
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Definition
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Term
How do cool stars appear?
How do Medium hot stars appear?
How do the hottest stars appear? |
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Definition
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Term
| ________________ are groups of stars that make a picture in the sky by appearing close to each other |
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Definition
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Term
| Are galaxies actually close together? |
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Definition
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Term
What are galaxies?
What is the name of our galaxy? |
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Definition
huge groups of stars that are fairly close together
The Milky Way |
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Term
| Spectroscopes identify the __________ in a star by separating ____________ into a pattern of __________ and ______________ |
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Definition
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Term
| Reflecting and reflecting telescopes are optical telescopes because they gather the _____________ light waves |
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Definition
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Term
| The _________ and _________ in optical telescopes focus __________ and _____________ _____________ |
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Definition
Lenses
Mirrors
Light
Magnify images |
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Term
A radio telescope gathers radio _________
An infrared telescope gathers infrared _______ |
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Definition
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Term
| How can images from a space telescope be recorded? |
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Definition
| on film on by electronic detectors |
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Term
| _________ and other radiation that is recorded by _________ in ___________ do not pass through the __________. |
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Definition
LIght
Telescopes
Space
Atmosphere |
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Term
| What could light and other radiation that is recorded by telescopes in space passing through the atmosphere do? |
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Definition
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Term
| Why are images from telescopes on Earth blurred? |
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Definition
| because of particles in the air or the temperature of the air |
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Term
| Do images in space produce clearer images than telescopes on Earth? If so, why? |
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Definition
| they do because they are closer and past all the particles in space |
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Term
| The distance light can travel in a year |
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Definition
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Term
| a group of stars that form a pattern in the sky |
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Definition
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Term
| a ball of ice, dust, and gases |
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Definition
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Term
| spacerock that lands on earth |
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Definition
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Term
| shows how something works |
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Definition
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Term
| an instrument that separates light into patterns of lights and colors |
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Definition
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Term
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Definition
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