Why not ask your science teacher? If you've got it for homework then you've most likely covered it in class.
"MessieLillyFull" wrote:Well Invisible dreamer I did google it, but google didnt have the answer so can anyone help xxx
Life is a lot of work.
What is it that gives us the strength to carry on when were burned out?
Sometimes an inspirational idea can help us renew ourselves.
People push us down,
We have a right to gain power,
Stand up to those who torture.