NST - PLANETS Flashcards
What did people believe about earth?
That it was flat and they could fall off the edge
Why did they believe this?
Because when they looked far into the distance it seemed like earth ended where it touched the sky
What proves that earth is not flat
Photographs taken from space
What is Earth shaped like
A Round ball
What is a round shape called?
A Sphere
What is earth made of?
Rock
What happens in the centre of the earth
Rock is so hot that is has melted
What is a feature
An interesting part of something
The surface of the earth is hard and made of what
Rock
What is all the land you see made of
Rock
What is under sand and soil
Hard Rock
How is sand formed
It is formed from rocky surfaces as it crumbles
What is soil
It is sand which has mixed with other things like dead leaves and plants
What are many places on earth covered by?
Large stretches of water
What is underneath water
Hard, rocky land
Is earth’s rocky surface smooth and why?
No, it has huge mountains and deep hollow parts
What can collect in parts of earth’s surface that are hollowed out?
Water
What surrounds Earth’s surface
A layer of air.
What is a surface?
It’s the outside part or top layer of something
How much of earth’s surface is covered by water
More than half
What does water look like from space
It looks blue
What covers most of earth
Seawater
What are oceans
Large salty water surfaces
What names do oceans have in different parts of the world
Atlantic ocean, Indian ocean, Pacific ocean