Earths Interior
The solid layer that is somewhat flexible in the upper mantle that is located just below the lithosphere; lithospheric plates "float" and move on this layer.
Asthenosphere
Half-Life is....
the rate of decay of a radioactive element
which is the best definition of deforestation?
removing the forest
A student writes in her science notebook: “I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker.”
What the student wrote in their science notebook is an example of a(n)
Observation
Explain Transform Boundary
tectonic plate boundary where two plates slide past each other horizontally
Describe what happens to the pressure from one layer to the next
Pressure increases as the weight of the layers above increases.
What does the Law of Superposition state?
in undisturbed, horizontal, sedimentary
rock layers, the oldest layer is on the
bottom.
When human-made chemicals and garbage find their way into nature and harm the air, soil, and water it is called?
pollution
What is an Independent Variable?
is what is manipulated
Put these geologic scale terms in order of largest to smallest groups.
Eon, Era, Period
The layer that heats the material in the mantle to form a convection current
The core
The Earth is estimated to be how old?
4.5 billion years old
Less rainfall in an area and higher temperatures are main causes of?
Desertification
What is a Dependent Variable?
is what is measured
What is sea floor spreading?
process that creates new ocean floor when tectonic plates move apart.
The type of rock that is formed from particles of other rocks that are deposited in layers and compacted and cemented together.
What is Sedimentary rock?
Why are Index Fossils Useful?
because they tell the relative ages
of rock layers in which they occur.
Explain the Coriolis Effect
Makes things (like planes, winds and ocean currents) traveling long distances around the Earth move in a curved path instead of a straight line.
What is the difference between repetition and replication?
"repetition" means performing multiple trials within the same experiment, while "replication" means conducting the entire experiment again, often by a different scientist.
What is the name given to the “crunchy” layer of the crust and uppermost part of the mantle?
Lithosphere
A model can represent an object, system, or process. Why do all models have limitations?
A model is never exactly the same as the thing it represents
What is Relative age of a rock?
is its age compared to the ages
of other rocks.
What's the difference between extinct and endangered ?
When a species is completely gone. It is considered extinct. Populations of species that are so low they are in danger of becoming extinct are called endangered
Explain what empirical evidence is.
Information based on observation, experimentation, or experience.
Which core layer is solid iron and nickel?
Inner Core