Soil Layers
What is the best soil layer to grow crops in?
Top Soil
What are the layers of the Earth in order (going towards the center of the Earth)?
Crust, Mantle, Outer Core, Inner Core
How does an earthquake happen?
When plates transform and slide past one another, stored energy is released in the form of seismic waves
The rock cycle is a _____ cycle, it has no end and no beginning
Continuous
What is sustainability?
Using Earth's resources wisely, like water, plants, and animals, to make sure there are enough for everyone, now and in the future, without harming the environment.
What soil layer has the most solid rock?
Bedrock
What layer are we standing on right now?
The Crust
At what type of boundary will you find volcanoes?
Divergent
What are the 3 types of rock?
Metamorphic, sedimentary, and igneous
What is one example of sustainable practices?
Answers could be soil conservation, saving water, crop rotation, replanting trees, biodiversity protection, etc.
How is soil created?
Rocks and minerals break down into smaller pieces due to physical and chemical processes, and the addition of organic matter from decaying plants and animals.
What layer is the hottest?
The Inner Core
(9,000 to 13,000 degrees Fahrenheit).
At what type of boundary will you find a mountain?
Convergent
What are igneous rocks made from?
Molten rock that has cooled
What is one example of unsustainable practices?
Answers could be deforestation, soil and beach erosion, water waste, overgrazing, etc.
What are decomposers?
Decomposers are organisms that break down dead organisms and release the nutrients from the dead matter into the environment around them
What layer is entirely liquid?
Outer Core
What does tectonic theory state about the crust?
The surface of the earth is not fixed and eternal, but is in constant, ever-changing motion
What are sedimentary rocks made of?
Pieces of rocks that have been pressed together over time
A farmer notices that the wind is damaging his crops by blowing soil across the field,
causing the crops to lean to one side. What is the BEST action to conserve soil?
build rows of trees across the field as a wind breaker
What is the oldest layer of soil, bedrock or top soil?
Bedrock
What is the asthenosphere?
Part of the Upper Mantle located right below the crust, where tectonic plates move
What happens when a continental and a oceanic plate converge?
The oceanic plate will buckle beneath the continental plate, eventually making a sea trench
What happens to metamorphic rock when it is subjected to extreme heat?
It melts into magma
How does overgrazing of farmland cause erosion?
Exposes the soil, which the wind can then blow away