7th Grade Math - Study Guide

Front

What is elevation?

Back

Elevation is the height of a point above sea level, measured in feet or meters.

Front

How do you calculate the final elevation after a series of ascents and descents?

Back

Start with the initial elevation, subtract the feet descended, and add the feet ascended.

Front

If a hiker starts at 1,200 feet and descends 350 feet, what is her new elevation?

Back

850 feet.

Front

What does it mean for soil to be saturated with water?

Back

Saturated soil is when all the spaces between soil particles are filled with water.

Front

How do you find the total depth of unsaturated soil needed to reach saturation?

Back

Add the current saturation depth to the additional depth needed to reach the surface.

Front

If the saturation level is 1.2 inches and drops by 0.4 inches, what is the new saturation level?

Back

0.8 inches.

Front

What is a loop in the context of distance traveled?

Back

A loop is a complete circuit or path that can be traveled multiple times.

Front

If a path is 1 1/2 miles long, how many loops are in 6 miles?

Back

4 loops.

Front

What is a fraction?

Back

A fraction represents a part of a whole, expressed as a numerator over a denominator.

Front

How do you convert a fraction to a percentage?

Back

Divide the numerator by the denominator and multiply by 100.