Grade Level: High School, Mathematics When it rains paved surfaces like roads, sidewalks, and parking surfaces prevent water from being absorbed into the earth. Instead, the rain water collects on the pavement’s surface and creates runoff. The problem with runoff is that it typically collects pollutants as it moves over the impenetrable surfaces creating polluted water that can be harmful to [...]

Grade Level: 9, Mathematics Research has shown that sending or receiving a text takes a driver’s eyes off the road for an average of 5 seconds. Calculate the length that a driver will drive “blind” at the following speeds: 55 MPH 60 MPH 65 MPH 70 MPH 75 MPH 80 MPH Write your answer in the table below. Use Excel [...]

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How much does it cost to go to school and back in a car, a diesel bus, or a hybrid bus?

Rail-trails and other types of recreational trails, when built carefully, can help improve water quality by acting as buffer zones.

Solve the 3 problems to find out if there’s enough surface area for solar cells to supply its electrical needs.

To see how much thrust is generated by the Alka-Seltzer mixture, use a clinometer to measure the angle of elevation of the rocket. Then use trigonometry to figure out how high it flew!

Silicon is best choice for solar planes where the challenge is to create an aircraft light enough to fly but with enough power to get off the ground.