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Author
Language
English
Description
"Moles, beavers, rabbits . . . these animals burrow tunnels in the ground every day! What other kind of creature makes tunnels? Humans! In Tunnels! With 25 Science Projects for Kids, kids ages 7 to 10 explore the fascinating world of passageways beneath the ground, dug deep within the earth through soil and rock. But why dig through rock to make a tunnel? Tunnels give people a way to travel and transport goods from one place to another. Readers learn...
Author
Language
English
Description
"Getting from one place to another sounds easy if you are on a straight piece of land, but what if you have to get over - or under - a body of water or a deep gorge? Build a bridge! Bridges are the great connectors. They allow us to travel the twists and turns, highs and lows, ins and out of every geographic feature in our world. Bridges! With 25 Science Projects for Kids introduces readers ages 7 to 10 to the concepts and vocabulary of bridge construction...