Why Don’t we get burnt in the Why Don’t we get burnt in the winter ?winter ?

By Lachlan Alex and Ben

What did we want to find out!

When is the hottest month of the year! when is the coldest month of the year!

Our main question!Our main question!

• Why don’t you get burnt in the winter?

Our hypotheses!The clouds are in the way and we are on

the other side of the world!

Our research and modelOur research and model

Here is our model. below:

Find out what we found out on our next page.

Our research results

Our research proved us completely WRONG! The real answer is in our new hypothesis.

Our new hypothesis Our new hypothesis

The earth is tilted at 23.5 degrees and as we rotate around the earth we are either pointed towards or away to the suns main rays creating summer or winter.

Our conclusionOur conclusion !!!!

We live in the southern Hemisphere, We live in the southern Hemisphere, which is the part of the earth that is south which is the part of the earth that is south of the Equator. When the southern of the Equator. When the southern Hemisphere is tilted toward the sun, it is Hemisphere is tilted toward the sun, it is summer. When the southern Hemisphere summer. When the southern Hemisphere is tilted away from the sun, it is winter. is tilted away from the sun, it is winter.

More conclusionMore conclusion !!!!!!

As you can see the seasons are different in the As you can see the seasons are different in the north and southern hemisphere. That is north and southern hemisphere. That is because when it is summer in the southern because when it is summer in the southern hemisphere we are pointed towards the main hemisphere we are pointed towards the main sun rays in the northern hemisphere it the sun rays in the northern hemisphere it the complete oppositecomplete opposite

Prof for our Prof for our conclusion!!!conclusion!!! 1. the light is 1. the light is

concentrated near concentrated near the equator.the equator.

2.the light is scatterd 2.the light is scatterd because it has longer because it has longer to get to the earth.to get to the earth.

Other researchOther research!!!!!!

• The hottest point of the year is December The hottest point of the year is December January and February! January and February!

• the coldest month is July! the coldest month is July!

Scientific drawingScientific drawing

!!!!!! !!!S o c ia l a c t io n !!!

We are going to put a link on the school website. So people can know when not to go outside and get sun burnt.

www.sunsmart.org.nz/uv-radiation--index/ultraviolet-index-(uvi).aspx

References

csep10.phys.utk.edu highered.mcgraw-hill.com www.lawrencehallofscience.org daphne.palomar.edu aa.usno.navy.mil World atlas for kids Bill N ye the science guy

Thanks for watching our slide show

Created by Lachlan Ben Alex Designed by Lachlan D.O.P Ben