Groundwater Model: Where Does Our Water Come From?

Where does the mass for a growing tree come from? Scholars consider a few different hypotheses and guess which is correct. They then analyze data from different experiments to understand which concepts science supports.

In this age of globalization, the foods we eat often come from countries scattered all around the world. This research-based lesson asks young scholars to pick two of their favorite food items and investigate the origins of their...

Gold comes from rocks, but rocks can't produce gold—so where does it really come from? The video presents two competing theories of where gold comes from and how it is produced. 

It's commonly known that over 70 percent of of the earth's surface is covered by water, but exactly where did it all come from? Join this short video as it travels back to the beginning of the universe in search of the origins of this...

Learners brainstorm on ways they use water, and where water comes from. They view video, Down the Drain, to gain specific facts about water use, properties of water, problems of water and the water cycle. They perform a lab activity...

Water that leaves the oceans must eventually return. The animations in the final lesson of the four-part NASA series show the complex path water can take across landforms before returning to the ocean. Approximately one-third of the...

Where does our weather come from? A thorough video lesson discusses the NGSS standard ESS2D instruction from elementary through high school. The instructor explains the factors the impact weather and climate and the long-term effects of...

Water is common? Not really! Learn how the polarity of the water molecule gives it tremendous properties that make is quite unique in the universe. Learners will understand surface tension, adhesion, and cohesion, as well as why these...

The lack of clean water is a life-threatening plight for millions of people around the world. Through an extensive WebQuest, young environment or social studies classes compare our water availability to that of the cxitizens of Ethiopia,...

Some aquifers took thousands of years to collect water, yet they have been depleted in only a hundred years. Viewers learn about where humans use water and the serious concerns for the future of the water supply in the second of 10...