1
Rocks are generally deposited horizontally. After one rock layer has been deposited, another is laid down on top of it. Thus, the rocks on the bottom of the stack are the oldest, and the rocks on the top are the youngest. Once the rocks have been deposited they sometimes get moved around. They can...
Grade Level   K 1 2 3 4 5
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2
A few very special walls help us remember the past. LeVar visits the Vietnam Veterans Memorial to find out about monuments. Maya Lin, the young architect who designed the Memorial, describes her vision and the process of creating this special place. Other momuments explored include Mount Rushmore -,...
Grade Level   K 1 2 3 4
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3
While the 'Principle of superposition of strata' states that younger rocks are found above older ones, there are certain unusual geological conditions causing older rocks to be found on top of younger ones. Through this activity, pupils can model the unusual geological conditions where the...
Grade Level   10 11 12
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4
"Have you ever seen a fossil? A fossil is any evidence of past life preserved in sediments or rocks. Do you think you could have dinosaur fossils in your family car’s gas tank? Did you ever hear that oil and natural gas are “fossil fuels”? Do you think oil and natural gas can be made from...
Grade Level   3 4 5 6 7 8
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5
A fossil is any evidence of past life preserved in a geologic context, such as within rock or sediment. This activity allows you to explore the process used by paleontologists — scientists who study fossils to understand ancient landscapes, climate, and life on Earth — to find and identify...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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6
Rock Cycle is an interactive Web site where students can learn all about rocks and geology, the science of rocks. They will learn how rocks can be identified, how they are formed, and how they change over time. Students will identify the three major kinds of rocks and learn how to tell them apart....
Grade Level   5 6 7 8
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7
Paleontologists are the geoscientists who discover and study fossil evidence of past life. Sometimes they even find the footprints of dinosaurs that roamed the surface of the Earth long ago. Ever wonder how paleontologists are able to determine, based on fossil evidence, whether a particular...
Grade Level   7 8 9 10
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8
In this unit, your students will study fossils. Fossils are any evidence of past plant or animal life contained in sediment or a sedimentary rock, from bones, shells or teeth to imprints of a dinosaur's foot. Students will see that to hold a fossil is to hold millions of years of history in their...
Grade Level   K 1 2 3 4 5
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9
The age of fossils intrigues almost everyone. Students not only want to know how old a fossil is, but they want to know how that age was determined. Some very straightforward principles are used to determine the age of fossils. Students should be able to understand the principles and have that as a...
Grade Level   8 9
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