Sun Spectra
Star Life Cycle
Inside the Sun
ESSRT
Surprise Me
100
What does white light look like through a spectroscopy telescope? In other words, what do you see?
The light is separated into a spectra of colors!
100
Over time, what happens to the percent of hydrogen in stars?
It decreases/go down over time
100
What are the two elements that make up the sun?
Hydrogen and Helium
100
What page can you find the electromagnetic spectrum?
Page 3 of the ESSRT
100
Using your Earth and Space Science Reference Table, name a star that has a lifetime of 1,000,000,000 years.
Sirius
(Vega and Altair is also acceptable)
200
What happens to the spectra of white light when it passes through a gas?
The spectrum shows that not all of the colors are present anymore.
OR
Part of the spectrum of light was absorbed by the gas.
200
What is a supernova?
When a star explodes!
200
How long does our sun live for?
10 billion years.
200
Use the Life Cycles of Stars Model on Page 5 of the ESSRT. What happens to a Red Supergiant?
A supernova.
200
What does sustain mean?
Sustain means to help something stay alive or keep going.
300
Name two examples of gasses that were seen in Lab 2: Light Spectra
1. Helium
2. Hydrogen
300
What is a nebula?
Gas and dust in space that sometimes comes from the explosion of a star.
300
Where does nuclear fusion take place in the sun?
- In the atmosphere
- In the core
- In the space around the sun
- Nuclear Fusion does not take place in the sun
In the core
300
Use the Electromagnetic Spectrum. What happens to wavelengths as energy DECREASES?
Wavelengths INCREASE
300
What does it mean for something to be in equilibrium? *You can draw or write your response
It means that two opposing forces are balanced.
400
What was the name of the element that emitted this specific light spectra?
Hydrogen.
400
Name two groups of stars.
1. Main Sequence Star
2. Red Giant Star
3. Supergiant Star
4. White Dwarf
5. Neutron Star
6. Brown Dwarf
400
Where is our sun located on the Hertzsprung-Russell Diagram (HR Diagram)?
Main Sequence
400
Looking at the "Emission Spectra of Some Elements from Stars," how many lines does Silicon have?
13 lines.
400
Was the Big Bang a loud or silent explosion? Why?
A silent explosion because there was no air to carry those sound waves.
500
Explain using the spectra of light why we know that hydrogen and helium are in the sun.
We know that hydrogen and helium are in our sun because the spectra of hydrogen and helium are present in the sun's spectra.
In other words, the dark lines that are seen on the hydrogen and helium spectra match the dark lines that show up on the sun's spectra!
500
Describe the life cycle of our sun (What does it start as, what does it end up as)
Star forming nebula --> sun-like star --> red giant
--> stellar nebula --> white dwarf -->back to star forming nebula
500
Explain the process of nuclear fusion
When two hydrogens crash into each other and form helium and a lot of energy.
500
Name a star that is orange in color and has a luminosity of 0.1 solar units?
61 Cygni B
500
Write down the 6 layers of the Sun (internal and external).
Internal: Core, Radiative Zone, and Convection Zone.
External: Photosphere, Chromosphere, and Corona.