1. 1 The Spirit of Enquiry - Sun Fun
Where does the Sun get its energy from to shine for hundreds of millions of years?
To answer this we need to know what is inside the Sun!

2. How can I find out how the Sun gets its energy to shine?
2 What is the Sun made of?
How can I find out how the Sun gets its energy to shine?

3. Perhaps look at the light that it emits.
3 View from a distance.
SOHO Satellite observes the Sun
Perhaps look at the light that it emits.

4. 4 Sunlight Contains a Message!
We can tell a lot from star light using:
Land based telescopes
Telescopes in space Or

5. 5 Continuous Spectra of Very Hot Objects
Hot Bulb
White Light
Continuous Colours – No gaps in the colours!

6. 6 Emission Spectra of a Gas
Hot Gas
Coloured Light
Only a few colours are emitted by gas.

7. 7 Absorption Spectra of a Gas
Hot Bulb
Gas
The gas absorbs some of the colours

8. 8 The Different Types of Spectra
Hot Object
Prism
Absorption
Spectra
Continuous Spectra
Emission Spectra
Gas Cloud

9. 9 Hidden Messages – Elementary Spectra
Emission Line
Hydrogen
Absorption Line

10. 10 Ghost Hunters – The Search for the Sun’s Spectra
This is our Sun’s Spectra
1. The intensity(brightness) of the the colours tells us the temperature of the surface of the Sun.
2. The absorption lines tells us what gases are in the Sun.
3. The Sun is mainly made of Hydrogen and Helium gas.
4. However, the Sun also contains a lot of other
elements.

11. 11 What is the Universe made from?
It turns out that most of the Universe is made from Hydrogen as well!

12. 12 Hydrogen - Star “fuel”
The most abundant element in the universe is Hydrogen.
Hydrogen was created at the start of the Universe.
Hydrogen is used to power the stars.