Introduces differences in size by comparing groups of big animals, such as big turtles, wildcats, and ocean creatures.
Introduces differences in length and height by comparing dog breeds and their features, such as legs, ears, and noses.
Introduces differences in size by comparing groups of small animals, such as small birds, turtles, and fish.
Introduces differences in weight by comparing heavy, heavier, and heaviest everyday machines, such as motorcycles, cars, and trucks.
Introduces differences in lengths by comparing lengths of baseball diamonds, tennis courts, Olympic swimming pools and other distances in sports.
Introduces differences in height by comparing groups of tall landmarks and structures throughout the world, such as skyscrapers, bridges, and mountains.
Compares and contrasts some of history's most popular dinosaurs through engaging text and dynamic infographics, charts, timelines, photos and strong reading level control.