Ships travelling between Lake Ontario and Lake Erie use the Welland Canal. Beginning with a conversation between characters Mathise, Geo, and Trig, they explain how a lock in the canal operates by gravity alone, without pumps. The characters use mathematics to solve problems such as how long the locks take to fill and how to express the volume and flow of water in more common terms (bathtubs of water ... Full description.

This is the site of a not for profit educational initiative. The site strives to promote competency in literacy and mathematics using lessons that focus on an aquaculture themes. These lessons include Understanding Percents (through the management of classroom fish), Equivalent Fractions (use food-coloring, sugar, and a dissolved oxygen tests to determine concentrations), and Japanese Garden (where ... Full description.

This standards-based module uses hands-on activities and real-time data investigations to allow students in the elementary grades to investigate weather phenomena both locally as well as in other places around the world. By using hands-on activities and real-time data investigations, the students will develop a basic understanding of how weather can be described in measurable quantities, such as temperature, ... Full description.

This is a National Oceanic and Atmospheric Association (NOAA) sponsored website that includes a variety of resources for educators and students. Oil spills are defined by scientists and further explained using photographs and questions previously submitted by students and teachers. Experiments for students and teachers are categorized by grade level and information on how to obtain instructional kits ... Full description.

This live, interactive electronic field trip to a North Carolina estuary is conducted on two dates each year. Previous field trips are stored for non-interactive access. Teachers can access resources on such topics as estuarine and coastal monitoring, management, cultural traditions, invasive species, and habitat restoration. The lesson plans include grade level and standards applicable for technology, ... Full description.