3º ESO. PLATE TECTONICS THEORY




1. How many types of layers are there inside the Erath? Draw 2 small pictures explaining them.
2. What did the scientist Alfred Wegener notice in the early 1900's? What dis he believe? What does the Greek word 'Pangaea' means?
3. What does the Plate Tectonics Theory state? How fast do plates move? Which 3 natural discoveries made in the 20th century Wegener's theories seem more plausible? Explain them.
4. What's the name of the place where these plates meet? Name, explain and give examples of the 3 types we can find in our planet.

3º ESO. PLATE TECTONICS

 1º ESO. OUR SOLAR SYSTEM

1º ESO. DISCOVER THE NORTH STAR



1. Why do we use the North Star as a navigational tool?
2- Why is the North Star the one that doesn't move in the sky?
3. What happens with the other stars if you look from the Earth?
4. How can we locate it in the sky?
5. Has the North Star always been the North Star?
6. Is the North Star a bright star?
7. Which star will be pointing the polar axis in 12,000 years?