Describes the history of bridges, examines how engineers plan a bridge, details the construction of different types of bridges, and presents noteworthy examples.
Describes the history of tunnels, examines how engineers plan a tunnel, details the construction of different types of tunnels, and presents noteworthy examples.
Presents the steps to making bread, from the crushing of the wheat, to mixing the ingredients to make dough, to waiting for the dough to rise, and finally baking the bread.
Looks at the migratory patterns of geese, who fly north in the spring and south in the fall, flying in a V shape to save energy on roads in the sky known as flyways.
Explains how applesauce is made from apples, including picking the apples from an apple tree, how the apples are processed in a factory, and how they are cooked until they are soft enough to become ap
Explains how sap from the maple tree is turned into maple syrup, including how the sap is collected, how it gets to the sugarhouse, and what happens to the sap once it is in the sugarhouse.
"Now that laws promoting racial equality exist, some people argue that racism as a whole has been eradicated despite evidence to the contrary; highly publicized racist incidents are generally dismisse
