Tsunamis
A tsunami is a great, big, ocean wave. It can move very fast and grow to be very tall. A t...
Water is essential to life. Each human being needs at least thirteen gallons of water every day. We need it to drink, to cook, and to bathe. We need it for growing food, for producing electricity, and for sanitation. Most people in the United States have easy access to water. That is not true for many people in the world. More than one billion people cannot easily get clean water to drink. Some people have to buy their water. They must walk long distances and carry heavy jugs. This water is often expensive. Other people put cisterns, or large buckets, on their roofs to collect rainwater. This rainwater, as well as the water in lakes, rivers, and the polar ice caps, has been around for millions of years.
A tsunami is a great, big, ocean wave. It can move very fast and grow to be very tall. A t...
Most birds can fly. Flying helps birds get around and escape predators like cats. Birds ca...
Ellie squinted and smiled at the sea. She watched a line of pelicans glide low over the wa...