Maps and how to read them!
How old is it?
How did it get there?
Vocabulary
100
What is the name of this kind of map?
Topographical map!
100
How many major ice ages has our planet gone through that we know of?
Our planet has gone through 5 major ice ages that we know of.
100
What is the most likely explanation for how these rocks got here? What is the term?
These rocks are most likely glacial erratics. They are large rocks randomly dropped off by a glacier.
100
What is the process called that could have pulled away so much of this hill? How does it happen?
The process is called plucking. Plucking happens when the water from a bottom of a glacier seeps into the cracks of a rock. The water freezes again and plucks the rocks out as the glacier moves along.
200
Who was the first person to create a map of the sea floor?
Marie Tharp first made a map of the sea floor.
200
Roughly how old is the world's oldest tree?
The world's oldest tree is over 5,000 years old.
200
What is the most likely explanation for how these rocks got here? What is the term?
These rocks are most likely glacial till. They are bunches of small rocks dropped off together by a glacier.
200
What is this? How did it get here?
That's a U-shaped valley. It's there because it was once the path of a glacier.
300
Is the top of this hill flat or pointed? How do you know?
The top of this hill is flat because the inside circle is shaped like an oval.
300
How old is Big Bertha?
Big Bertha is over 4,000,000,000 years old.
300
What is this formation called? How did it get here?
This is a kettle lake. They happen when big chunks of ice break off a glacier and get buried. The ice melts, and it forms a lake.
300
What is weathering?
Weathering is the breaking down of rocks into smaller and smaller pieces.
400
What are the lines on this map called? What is the space in between the lines called? What do the lines and the spaces show?
The lines are called contour lines. They mark elevation on a map. The spaces in between the lines are called intervals, and they show the distance or height from one line to another.
400
Roughly how long ago did the last ice age end?
The last ice age ended about 11,500 years ago.
400
What are the scratches on this rock called? How did they get there? 
The scratches are called glacial striations. They are caused by giant glaciers moving along the surface of the rock.
400
What is erosion?
Erosion is the movement of rocks from one location to another.
500
How can you tell if parts of a hill are steep or gradual?
You can tell a hill is steep if the lines are close together, and it is a gradual hill if the lines have more space between them.
500
What is one way to tell how old a tree is WITHOUT cutting it down?
If it is an oak tree, you can see how wide it is and estimate the age that way. You also can take a core from a tree, which is drilling into the tree and pulling out a long cylinder and counting the rings.
500
What is this hill called? How did it get here?
This hill is a drumlin. It's here because a glacier deposited a large pile of rocks and sediments and the land grew over it.
500
What is deposition?
Deposition is when soil and rocks are deposited, or dropped off at a new location.