The Earth
What is the name of Earth's satellite that causes tides and other important phenomena for life, such as the increase of the day length?
The moon
What is the thinnest, outmost layer of the Earth called?
True or false, minerals are made up of rocks
False
Rocks are made up of minerals
What type of field does the Earth generate?
A magnetic field
What is the base layer of the planet, formed by layers of minerals and rocks?
The geosphere
What is the boundary zone between the core and the mantel?
The "D" region
A mineral is a ______ substance
A rock is a _____ substance
homogeneous
heterogeneous
What is the sphere of gas called?
The atmosphere
Volcanoes, earth quakes and mountain formation
What percentage of the volume of Earth is made up by the mantle?
80%
What does it mean to be "inorganic"
Not alive or has never been part of a living being
What is the easiest property of minearls to identify?
Color
What is Earth made of?
Solid materials - minearls and rocks
Liquid material - mostly water
Gases - nitrogen, oxygen, carbon dioxide
What are the flat or low slope extensions that cover 40% of the seabed?
Abyssal Plains
What is the resistance of a mineral to scratching?
The hardness
What is the outer core composed of?
Iron and nickle
What is the name of the process that allows for the densest metallic materials to accumulate in the centre of the planet
Gravitational differentiation
What mineral forms tbe lower mantle
Bridgmanite
What is the name of the internal of a mineral called?
Crystal structure
How many million years ago did the planet form?
4600 million years