"Chapter 1: What is Energy?
Gas pump in car.
Energy causes things to happen around us. Look out the window.
The sun radiates light and heat energy. It helps plants to grow.
At night, lamps in our home use electrical energy to light our rooms.
When a car drives by, it is being powered by gasoline, a type of stored energy.
The food we eat contains energy. We use that energy to work and play.
We learned the definition of energy in the introduction:"
Chapter 1: What is Energy?
Gas pump in car.
Energy causes things to happen around us. Look out the window.
The sun radiates light and heat energy. It helps plants to grow.
At night, lamps in our home use electrical energy to light our rooms.
When a car drives by, it is being powered by gasoline, a type of stored energy.
The food we eat contains energy. We use that energy to work and play.
We learned the definition of energy in the introduction:
"By 2050, a third of the people on Earth may lack a clean, secure source of water. Join National Geographic in exploring the local stories and global trends that define the world's water crisis. Learn about freshwater resources and how they are used to feed, power, and sustain all life. See how the forces of technology, climate, human nature, and policy create challenges and drive solutions for a sustainable planet."
The online Photo Editors allows users to upload images from their PC or they can also import images from photo sharing websites like Photobucket.com , flickr.com , Picasa.com , facebook.com , etc.
They provide image resizing tools which will help all webmasters to re-size images easily online. After editing images you can also upload images to the photo sharing websites or you can save in your hard drive.
Some very cool ways for kids to alter images without the pain of Photoshop!
bored of PowerPoint?
For years, Microsoft PowerPoint has been the standard bearer of slide presentation applications, but several Web-based alternatives have emerged.
For the most part, the alternatives offer similar functionality to PowerPoint, sometimes more, sometimes less. One obvious advantage to Web-based presentations is that they're stored in the cloud, eliminating the potential for nightmare scenarios involving lost or corrupted thumb drives.