How Distant is the Moon? Part 2

Determining whether or not something is living can be more difficult than it seems. Put your young scientists to work defining their own criteria to identify life, then work with three samples to see if they are alive or not. 

Enough talk about the Greenhouse Effect—let's actually look at it! Junior climatologists engage in a simple thermodynamics experiment on a cold winter's day to examine global warming. The activity simulates rising carbon dioxide levels...

What is the real cost of electricity? The real cost is not just the price you pay, but the environmental and economic costs as well. Scholars build, use, and judge the effectiveness of a turbine. They also investigate the environmental...

How many football fields would fit on the moon? Although it appears small in the night sky, the distance from Earth makes its size misleading. A quick video lesson from the Kurzgesagt playlist helps scholars understand the size of the...

The narrator of this video details the urinary system by looking at how bodies regulate the production of urine and how urine is stored and excreted from the body. The narrator finishes by discussing the nervous system's role in the...

Did you ever wonder which season is best for viewing the full moon? Find out why winter wins the honor, and why the tilt of Earth''s axis is the main contributor. 

The Cold War presented some communication challenges to the US military. Because the conflict was before the launch of satellites, scientists focused on the earth's natural satellite, the moon, the bounce radio signals. A video lesson...

The mind-bending concept of space-time is further discussed by two cartoon scientists in this second of three animated films. Assign each part and the accompanying Think questions as homework or as an enrichment when working on motion...

Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the liquids...

It's amazing how easy it is to forget that every second of our lives we are being pushed on by an uncountable number air molecules. Explore with your class the concept of air pressure and how it affects our bodies, the earth's weather,...