It's hot today, but is that the weather or the climate? This colorful presentation isolates both concepts to allow for better understanding by covering the positioning of the planet, making comparisons of land versus water, and looking...

Information about digestion of various food components is given in this PowerPoint. The diets of herbivores and carnivores are compared, and there are many diagrams giving details of their digestive system specializations. The...

Leaf structure and its specializations for photo-respiration are detailed here.  Slides provide information about Photo-respiration biochemistry and its impact.  A class learning about classic respiration will appreciate the...

The biggest magnet in the world is at the Los Alamos National Laboratory in New Mexico and can reach 100 tesla. By comparison, magnets that lift cars are about two tesla. The 11th presentation in this series covers magnetism,...

Star light, star bright ... just how long can you wish on that star? Well, it depends on its mass. The presentation explains the life cycle of stars based on their sizes. Scholars learn about the life expectancy of a star based on the...

Nanotechnology is described for emerging engineers. Instructions for converting nanometers to meters is provided. Finally, the step-by-step laboratory procedure for measuring the size of an oil molecule is walked through. What a terrific...

How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local...

Sailboat design requires more than a half-circle and triangle sketch. After viewing a slideshow presentation that outlines the requirements for sailboat design, learners draw a design, perform the needed...