13 Ways to Tell Time Backwards

Schools generate a lot of trash. This lesson has groups collect data about the amount of trash that people generate at school over a period of time. They sort the trash and determine the amounts based upon type. The class determines the...

Did you know that you are already a time traveler? The relationships among time, space, and gravity are explained in this featurette. Also, the possibilities of building a time machine are explored. Where you probably aren't spending a...

It's story time! Show your class how to use a distance-time graph to tell a story. They learn to draw and analyze a graph using distance and time data. The story then continues to compare velocity and time. 

There are many movies about asteroids destroying Earth and what we, as humanity, do to destroy the asteroid. This video presents the actual plans theorized by NASA. It mentions the pros and cons of each method as well as the reason we...

Did you know an insect has unique mouthparts based on what and how it eats? This is a simple way to identify the order an insect belongs to. Watch a video that explains the interesting world of insect mouthparts.

Jr. high learners explore the concept of Elongation. They analyze the phases of the moon and position of the sun in order to create a flip book. They will then use their books to determine the local time using the sun and moon. Excellent!

Can someone really have a "biological clock"? Discover why many organisms on earth have an inherent awareness of where they are in the day's cycle.This video discusses animal adaptations, the earth's revolutions, and how light and...

Humans often struggle to catch fish, but dolphins have the process down to an art. A video explores the brains of the intelligent porpoises, focusing specifically on their superior methods of catching fish. Two reading comprehension...

A smart series of videos attempts to describe the relationship between space and time. In this first episode, two educators hold a discussion using slides and a flip-book approach to put the two things together. Make sure to follow this...