How big were dinosaurs compared to YOU? · See them next to a school bus · Grades K–5
This free interactive dinosaur tool helps young learners explore the prehistoric world. Dinosaurs are a gateway topic that sparks curiosity about science, geology, evolution, and the history of life on Earth. They lived during the Mesozoic Era, which lasted from about 252 to 66 million years ago.
Interactive dinosaur tools let students compare sizes, explore timelines, and discover different species in a hands-on way. Learning about dinosaurs introduces key scientific concepts like classification, adaptation, extinction, and fossil evidence. All tools are free and designed for elementary and middle school students.
Explore the interactive content above to discover amazing dinosaur facts. Click on different dinosaurs to learn about each species. Take the quiz to test your knowledge. Perfect for science class or dinosaur enthusiasts of any age.
Last reviewed: April 2026