Spheres of the Earth
How many spheres does Earth have?
4
True or false: The layers of the Earth are layered from the densest layer on top and the least dense layer at the core.
False
What is the hydrosphere?
All forms of water on earth
Why is Earth a closed system?
With a few exceptions (asteroids), matter does not enter or leave the Earth
What are two elements that move through the water cycle?
Hydrogen & Oxygen
Which of the following is not a sphere of Earth?
Lithosphere
Hydrosphere
Mesosphere
Atmosphere
Biosphere
Mesosphere
Which layer of the Earth consists of moving tectonic plates?
The crust
What percent of the hydrosphere is fresh water?
2.5%-3%
How long do biogeochemical cycles take?
Days to millions of years
When rain reaches the surface of the earth, what can happen?
Water can evaporate again
Water can freeze into ice
Water can percolate
Water can flow over the surface of the earth
What is the lithosphere?
All rock on earth
How does the mantle of the Earth cause earthquakes and volcanoes?
The molten rock moves and flows which causes the tectonic plates to move
How old is water on Earth?
Billions of years
What element makes up most of the atmosphere as a gas but required as a solid fertilizer in plants?
Nitrogen
What significant event happened 4.5 billions years ago?
The Earth was created
When plants take in carbon dioxide from the air which two spheres are interacting?
Biosphere & Atmosphere
What benefit does the outer core of the Earth provide?
Creates an electromagnetic field
What is transpiration?
Evaporation of water from plant tissue
_________________: Wind, rain,temperature changes, animals can lead to breaking down or dissolving of rocks and minerals on the surface of the Earth.
Weathering
What is required for life and a dynamic planet?
The recycling of essential elements
Which of these is an example of how Earth's hydrosphere interacts with the atmosphere?
The ocean affecting air temperature
A river flowing through a canyon
Earthquakes
Migration of birds in winter
The ocean affecting air temperature
What is one interesting fact regarding the inner core of the Earth?
It spins faster than the Earth
What is the word used for water that is trapped underground?
Aquifer
____________________: plants absorb ammonia/ammonium ions/nitrate ions through their roots and use it to make proteins and DNA. Consumers eat them and use the nitrogen to do the same.
Assimilation
Where do biogeochemical cycles happen?
Biosphere
Geosphere
Atmosphere
Hydrosphere