lunes, 24 de octubre de 2011

1º Atmosphere

Atmosphere

Copy a drawing of the atmosphere.
Look for the composition of the atmosphere and draw a pie chart showing it.
Is there anithing else  apart of gases in the atmosphere?
Why are ozone and carbon dioxide important gases?

lunes, 3 de octubre de 2011

1º Planet Earth

nineplanets

After reading the main page, answer the next questions:
1.- What is the temperature of the core of the Earth?
2.- How old is the Earth?
3.- Does the surface of the Earth change or not? Describe the changes.
4.- What are the two types of terrain in the Moon?
5.- Is the Moon older than the Earth?.