The Universe
What shape is Earth?
A sphere
What causes day and night?
The rotation of the Earth.
What are Earth's outer layers?
The hydrosphere and the atmosphere.
What are the two basic groups of landforms?
Emergent land and submerged land
Which planet is the only planet in the solar system where life exists?
Earth
What is a revolution? How long does it take to complete?
It is the movement of the Earth around the sun. It takes one year to complete (365 days).
Where are living organisms active?
What are the four basic landforms?
Plains, plateaus, mountains, and valleys
What is latitude?
The distance from any point on Earth to the Equator. Latitudes can be north or south.
What is a leap year?
Every four years there is an additional day in the month of February.
What is the difference between continents and islands?
Continents are large extensions from emerged land, while islands are portions of land surrounded by water. Continents are much larger than islands.
Name three different types of relief of submerged lands.
The continental shelf, the continental slope, abyssal plains, ocean ridges, and trenches.
What is longitude?
The distance from any point on Earth to the meridian. Longitudes can be east or west.
When a hemisphere "advances" towards the Sun, what season is it?
Summer
Name Earth's three inner layers and describe what they consist of.
1. Core - consists of dense materials, mainly iron
2. Mantle - consists of materials such as magma
3. Crust - consists of solid rock and soil
Name three different types of relief of emergent lands.
Beaches, capes, gulfs, estuaries, fjords, peninsulas, and isthmi
What is the universe made of?
Describe what causes the seasons to change.
The Earth's movement around the Sun, revolution, causes the seasons. When a hemisphere advances towards the Sun it is hotter and summer. When it is retreating from the Sun, it heats up and it is winter, and when it is neither advancing nor retreating, it is spring or autumn.
On which tectonic plate is the Iberian Peninsula located?
Eurasian Plate
Relief is formed by what actions?
Earth's internal agents of forces