Through a series of activities, students discover that the concept of mechanical advantage describes reality fairly well. They act as engineers creating a design for a ramp at a construction site by measuring four different inclined...

In this instructional activity, students will identify the Earth's natural resources and classify them as renewable or non-renewable. They will simulate the distribution of resources and discuss the fairness and effectiveness of the...

To navigate, you must know roughly where you stand relative to your designation, so you can head in the right direction. In locations where landmarks are not available to help navigate (in deserts, on seas), objects in the sky are the...