Show:
Vocabulary
The Night Sky
Properties of Stars
Shining Stars
Space
100
A glowing ball of hot gases
What is a star?
100
Why does the sun look so much larger than other stars?
It is the closest star to Earth.
100
Stars that are closer to Earth will look ____ than stars that are farther away.
brighter
100
What are very small stars called?
Dwarf stars
100
What is another object, other than stars, that a telescope can help you see in the night sky?
Planets, the moon, comets.
200
The amount of light an object gives off.
What is brightness?
200
If you were in the city, which stars would you be able to see?
Only the brightest stars
200
At what point are you able to see stars in the sky?
When the sky is dark enough that starlight can be seen?
200
What color stars are the hottest?
Blue stars
200
Why can't you see stars other than the sun during the day?
Because the light from the sun washes them out. At night we can see them because Earth has turned away from the sun.
300
A tool that magnifies objects and makes them look closer and bigger.
What is a telescope?
300
Why do stars look so small from Earth?
Stars are very far away from Earth
300
Name two properties of stars
Brightness and size
300
What color stars are the coolest?
Red stars
300
What is a cloud of gas and dust in space called?
A nebula
400
The distance that light moves in a year.
What is a light-year?
400
How do scientists classify stars?
By their properties
400
What are very large stars called?
Giants or supergiants
400
What tool helps you to see many more stars?
A telescope
400
Why is it useful for scientists to discuss their work on a new group of stars with each other?
Sharing ideas; discussing observations, discoveries, or results; comparing notes; helping/learning from each other
500
Something about an object that you can observe.
What is a property?
500
Why can you only see the sun during the daytime?
Because at night, your part of Earth turns away from the sun.
500
What property of other stars makes them look like points of light compared to the sun?
They are farther away from Earth than the sun is.
500
Give two reasons for the difference in brightness of stars.
Bing a different distance from Earth, a different size, different temperature, or different color.
500
What is the star Polaris also called?
The North Star