Critical Load

Learners analyze critical load and how to reinforce the design of a structure to hold more weight. They examine basic structures and which materials to select. They create a prototype to hold more and more weight.

Shore up engineering knowledge with some building activities. Scholars design a foam beam, create a structure from playing cards, and construct a paper tower that won't topple over in the wind. Along the way, they learn about engineering...

The extent to which "Fittest" can describe social success versus reproductive success is explored. Evolution may not always lead to a more desirable trait, just the one which best suits the current environment. The idea of intelligent...

Even the titles of many published scientific journal articles confuse most people. The third video in the four-part series breaks down a very complex-sounding scientific journal article. The host avoids using jargon without losing the...

Every great chemistry teacher has a stoichiometry toolbox full of lessons designed to chisel away at misconceptions and confusion. It's time to make room for something new! Incorporate a brief but detailed video that walks junior...

What were the first living things to travel to space? Long before humans went into orbit, scientists sent animals into space to see how space exploration would affect living things. Viewers of an interesting video learn about how animals...

It's almost impossible to imagine living without electricity, but it isn't that long ago that was the norm. An informative video lesson briefly discusses each important discovery related to electricity. The narrator highlights each...

What happens when the earth reaches its carrying capacity of humans? As human populations grow, societies change from hunters and gatherers to agriculture to the industrial age and beyond. A video takes a global perspective of migration...

Demonstrate fiber optics and specifically how total internal reflection works. It covers the relationship between the angle of incidence and the critical angle, refraction, and the role of density. It concludes with other applications...

Students are introduced to the principles of gel electrophoresis and also provides an opportunity for students to practice loading gels and prpetting. In this laboratory activity, food color is used to separate into constituent pigments.