Fossils
What layer of rock is the oldest?
The lowest (the deeper the older)
Which is not a feature found on the oceans floor?
Rift valley, trench, continental shelf, estuary
estuary
A bulldozer pushing and piling things in its path is a lot like a ____________ changing Earth's surface.
Glacier
What are the two types of weathering?
Physical and Chemical
What is the movement of weathered materials from one place to another?
erosion
What can be determined about a fossil of a fish found in one rock layer and a fossil of a shell found two layers below it?
The shell is older than the fish.
Where do many earthquakes and volcanoes occur?
Near plate boundaries
How could you tell that a flood has happened in an area?
Soil and rocks on the sidewalks
Roads washed away or crumbling
Etc...
True/False Chemical weathering changes the minerals in rocks.
True
What is the process of eroded soil and bits of rock being dropped off in another place?
deposition
What layer of rock is the newest/youngest?
Top or surface
Which one can we NOT use to study Earth's features?
Maps, Patterns, Moon phases, Observations
Moon phases
How will waves change rocks on a coast line?
What is the slow process that breaks down materials into smaller pieces?
Weathering
More _________________ helps a location to experience less erosion.
Vegetation (plants)
Fossils are usually created from the ___________ of an organism.
Bones or imprint
How are the Earth's crust, earthquakes, and plate boundaries related?
Plate boundaries are Earth's cracked crust. The plates move and sometimes cause earthquakes.
What is one cause of erosion?
Wind, moving water, gravity
What might have formed the Grand Canyon?
Erosion from flowing water...river.
Mud and sand help _______________ fossils by holding the organism in place and eventually forming rock around it.
preserve
What patterns are there in the locations of volcanoes and mountains? What causes these?
Volcanoes are on plate boundaries while mountains are more on the edge of continents in land from the boundaries. This is all caused by plate movement.
How could you stop sand dunes from eroding?
Build a fence along the shore.
What is the difference between chemical and physical weathering?
Chemical weathering changes the minerals that make up rocks.
Physical weathering changes rock shape and size only.
What can scientists learn from fossils? (name at least two things)
Types of animals/plants
What the climate was like long ago
What the environment was like