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Definitions 1
Definitions 2
Questions 1
Questions 2/NJ ASK Review 1
NJ ASK Review 2
100
What is bedrock?
Rock that lies below the soil
100
What is lava?
Hot melted rock material that flows from active volcanoes and other fracture in the Earths crust
100
You find an igneous rock. It has large crystals and a very rough texture. Where was this rock most likely formed?
This rock was most likely formed from magma because it has large crystals and a very rough texture
100
In the Appalachian Ridge and valley region, sandstone lies beneath the ridges, and shale and limestone lie beneath the valleys. They are all about the same age and have been exposed to the same weather conditions. What can you infer about their hardness?
Sandstone is harder because it has been exposed to more pressure than shale and limestone.
100
Which type of rock is formed when heat and pressure changes but does not melt rock?
Metamorphic rock
200
What are fossil records?
The complete body of fossils that shows how species and ecosystems change over a long period of time
200
What is magma?
Magma is hot molten (liquid) rock material beneath the surface of the Earth
200
Sedimentary rocks almost always form in horizontal layers. Why? In what type of rock are you most likely to find a fossil?
Sedimentary rock forms in layer because layers of sediment pile on top of each other and harden. You are most likely going to find fossils in sedimentary rock because it is formed from bits and parts of animals, where a fossil would be found
200
Why do geologists consider metals to be a nonrenewable resource?
It comes from the Earth and is only so much of it and it takes a while to make.
200
Geologist classify rocks as igneous, sedimentary, or metamorphic. What do they base this system of classification on?
The method of formation
300
What is a geologic timescale?
A table that divides the Earths history into eras, periods, epochs, and so forth
300
What is metamorphic rock?
Metamorphic rock is igneous or sedimentary rock changed by pressure or heat
300
Refer to page 135 of the NJ ASK Buckle Down. Which is the greater unit of time: an era or an epoch? Which is the lesser amount of time: a period or an eon?
An era is a greater unit of time than a epoch. A period is a lesser period of time than an eon.
300
What can we do to conserve metals?
We can recycle cans after we finish them
300
Which equipment would be most useful for comparing densities of a sample of granite and a sample of limestone?
A beaker and a metric ruler
400
What is igneous rock?
Rock formed by the cooling of magma or lava
400
What is a mineral resource?
A mineral resource is any substance extracted from Earth
400
Refer to page 135 of the NJ ASK Buckle Down. In what era did the the first flowering plants appear? How many million years ago did the Eocene epoch start?
The first flowering plants appeared in the Mesozoic era. The Eocene epoch started 54.8 million years ago
400
Which equipment would be most useful for a scientist studying crystals of a sample of rock?
A microscope
400
Fossils of ancient whales have been found in southern United states. What does the presence of these fossils indicate about the past of this region?
Millions of years ago, global sea levels were higher and much of the southeast United States was under water
500
What are index fossils?
A fossil associated with a particular span of geologic time
500
What is a rock cycle?
A Rock cycle is a continuous process in which rocks change from one type to another
500
Dinosaurs lived during the Mesozoic era. Humans evolved in the Quaternary period. How much longer were dinosaurs around that humans?
Dinosaurs were around 240 millions years before humans
500
Which type of rock do paleontologists use to study past climates?
Sedimentary rock
500
Refer to question 7 on page 141 of Buckle Down NJ ASK Science 8. The rock on the left formed below Earths Surface. State one piece of evidence that supports this claim. The one on the right was above the Earths surface. State an evidence that supports this claim.
It looks like sedimentary rock and has very rigid edges while the one on the right is very smooth and shows signs of erosion