Download Stars

Life Cycle of
Stars
What is a star?

http://www.youtube.com/watch?v=vGS5_ZISl
Ng
What is a star?


Ball of hot gas
(hydrogen and
helium) that gives
off light
Have different
colors, sizes, and
patterns.
A star as seen from Earth.
Stars


When seen from
the Earth, most
stars appear as
small points of light
because they are
very far away.
They do not move.
The Earth rotates,
so we are the ones
moving.
Dwarf star
Supergiant Star
The Sun is a medium-sized star.
Sizes…(continued)
Sizes and Colors of Stars



Stars have different sizes. White dwarf
stars are about the size of Earth.
Supergiant stars can be wider than 300
million miles. That is more than one
thousand times the distance from Earth to
the Moon.
Stars can be different colors such as blue,
yellow, orange, red, white, and black.
Life Cycle of Stars
Temperature determines color

Red = coolest
Blue = hottest
White, yellow, orange in between

Red, orange, yellow, white, blue (in order)

Our Sun is ____________


3 Factors that determine
Brightness of a star

1. Size: the __________, the brighter

2. Distance from us: the ______, the brighter

3. Temperature: the _________, the brighter
Compare stars and planets

Similar:

Different:
Comparing stars to planets

http://www.youtube.com/watch?v=7T1LO6n
OUdw
Technology used to study stars

1. Telescope – founded by Leonardo da Vinci
around 1600.
What is the most Famous
telescope?
Answer

The Hubble Telescope
Constellations

Patterns of stars: What is this one called?
Constellation

This is my favorite constellation. What is it?
What is the most appreciated
star?
Answer

Polaris

Also known as the North Star
Do stars move?
Answer

It depends…..

http://www.youtube.com/watch?v=uUuVMhp4pA

http://www.universetoday.com/85730/dostars-move/
How are stars like people?

Answer on the next slide
Answer



We both are born
We both die
Do we come from stars? Really?
answer

http://imagine.gsfc.nasa.gov/docs/ask_astro/a
nswers/050921a.html

Life and death of a star video
http://www.youtube.com/watch?v=4elLkaeLq
ZQ

The End

I hope you enjoyed the show.