"Sounds are all around us. Some sounds are loud. Others are quiet. Some sounds are high. Others are low. The sounds that we hear travel as sound waves."--
"Living things depend on one another. Insects, water, and wind help plants grow new plants. They have an important role in nature. All these things work together to keep one another alive."--
"Living and nonliving things live together, in an ecosystem. Each thing living in the ecosystem relies on something else. To stay alive, all living things in an ecosystem need to live in balance. Can
"Change is all around us. The land moves and shakes. Day always changes into night. You will change, too, as you grow older. Change is one thing you can always count on!"--
"Have you ever noticed that offspring look like their parents? That is because they have the same genes. Genes make you who you are. But you will always be unique!"--
"Everyone has questions about the world. Scientific practices help scientists answer those questions. Asking questions, analyzing, and doing experiments help us find out more about the world in which
"Sight and sound help us understand the world around us. Sounds travel to our ears. We see images with our eyes. How else do your ears and eyes work together?"--
