In 1968, a science fiction writer named James R. Berry wrote an article entitled '40 Years in the Future' for the magazine Mechanix Illustrated. It was his futuristic vision of the 21st Century. Berry's predictions of a world featuring...

In this lesson, students make predictions about falling objects of different sizes and masses to learn about gravity and air resistance. Includes audio vocabulary list and extension activities.

This resource provides a database of standardized information on plants. Click on Photo Gallery to view photographs of various categories of plants, including noxious plants and crops.