Assignments Page # TC 1 ___ 1. Scientific Inquiry notes 2. Hypothesis Practice ___ 3. Control and Experiment groups ___ 4. Introduction to Forces notes ___ 5. Newton's Laws of Motion notes ___ 6. Newton's Laws Practice ___ 7. Birth of the Earth ___ 8. Solar system notes ___ 9. Planet Facts Notes ___ 10. Sunlight and Earth Notes ___ 12. Moon Notes part 2 ___ 13. Solar and Lunar Eclipses Notes ___ 14. Life Cycle of Stars Notes ___ Luminosity = Brightness
Transcript
Assignments Page #
TC 1
___1. Scientific Inquiry notes2. Hypothesis Practice ___3. Control and Experiment groups ___
4. Introduction to Forces notes ___5. Newton's Laws of Motion notes ___
6. Newton's Laws Practice ___7. Birth of the Earth ___8. Solar system notes ___
9. Planet Facts Notes ___10. Sunlight and Earth Notes ___
12. Moon Notes part 2 ___
13. Solar and Lunar Eclipses Notes ___14. Life Cycle of Stars Notes ___
Luminosity = Brightness
Coordinates on a graph are usually identified
Temperature (K) Luminosity(Lsun)
1 30,000 105
2 35,000 10-2
3 30,000 10-3
4 5,000 105
5 8,500 10-1
6 6,500 10-1
7 26,000 101
8 15,000 101
9 3,750 10-3
10 4,000 102
11 38,000 103
12 3,000 106
13 12,500 1
14 20,000 105
15 20,000 10-4
16 17,000 1
17 5,000 10-2
1
7
14
10
17
12
2
169
65
4
13
-1
3,7507,50015,00030,000
(26,000 , 101
1
7
14
10
17
12
2
16
9
65
4
13
-1
3,7507,50015,00030,000
Think-Ink-Pair-Share
Which part of the flame do you think is the
Think-Ink-Pair-Share
Which part of the flame do you think is the
Look at the graph,What do you notice about
the temperatures of the stars compared to
the color? Think-Ink-Pair-Share
14
10
17
12
2
3 9
8
13
-3
-1
1
3
5
3,7507,50015,000
Hertzsprung-Russell Diagram
Hertzsprung and Russell were two
astronomers that plotted on a diagram the
doing so, they realized that there was a
pattern with the stars' colors and the
temperatures as well. They found out that
the color of a star determines how hot it is.
The diagram became known as the HR
diagram named after both astronomers.
The HR Diagram is used to categorize the
stars in our universe by temperature and
brightness (luminosity)
What is a nursery?
In relation to stars, what do you think a
stellar nursery is?
What are stellar nurseries?
Stellar nurseries are areas of space with
large clusters of space dust and clouds
made up of helium, hydrogen, and other
gases.
Stars are created from Nebulas
which is another name for stellar
nurseries.
The word nebula is Latin for "cloud"
Nebulas collapse due to gravity and
years, the nebula starts to form
protosuns and then spit them out.
simulation of a condensing nebula
When the center of the protosun gets
hot enough (around 3,000 Kelvin), it
will turn into a sun.
The size of the sun depends on how
much hydrogen or fuel was present
when the sun formed.
As the sun burns
hydrogen and helium it expands
outwards, but gravity pulls the
expansion back.
3 types of stars can form from a nebula. Thetype of star they become depends on howbig the nebula was that formed the sun.
3 types of stars can form from a nebula. Thetype of star they become depends on howbig the nebula was that formed the sun.
