In this engineering science fair project, students will determine which 3-D geometric shapes scatter light the most. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction,...

Instructional module focusing on density as a physical property of matter. Discussion incorporates historical references as well as formulas. Site also includes an interactive practice quiz and links relating to the topic.

Instructional module focusing on the metric system. Discussion includes the historical development of the system and an explanation of base units. Site also includes an interactive practice quiz and links relating to the topic.

Psilophyta, lycophyta, sphenophyta, are the three divisions of plants depicted in this focused site. Examples of each division is provided along with pictures.