The cycle of water from the air to the ground to the oceans and back to the air never ends. Water is found in the air, in the ground, in rivers and oceans, and it's found as gas, liquid, and solid. As it moves though phases and locations...

The cycle of water from the air to the ground to the oceans and back to the air never ends. Water is found in the air, in the ground, in rivers and oceans, and it's found as gas, liquid, and solid. As it moves though phases and locations...

Using footage of dust and sand storms, this program demonstrates that wind erosion moves small particles and is prevalent in dry areas where water does not hold surface particles together. Students will learn that once the particles are...

The cycle of water from the air to the ground to the oceans and back to the air never ends. Water is found in the air, in the ground, in rivers and oceans, and it's found as gas, liquid, and solid. As it moves though phases and locations...

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...