Earth's History: Events, Places and Impacts part of DIG Texas Blueprints:Unit Collection
Unit Storyline Earth is 4.6 billion years old. Geologic time is vast, and students sometimes have a hard time grasping the concept of deep time. The unit builds on the basic understanding that students have ...

Plate Tectonics: Earth in Motion part of DIG Texas Blueprints:Unit Collection
Unit Storyline Our Earth is a restless and dynamic planet. From the tallest mountain peaks of the crust to the very center of the core, Earth is in constant motion. Many features at the surface result from the ...

The Dynamic Earth: Plate Tectonic Processes part of DIG Texas Blueprints:Unit Collection
× Overview Our Earth is a restless and dynamic planet. From the tallest mountain peaks of the crust to the very center of the core, Earth is in constant motion. Many features at the surface result from the ...

Peering into the Universe part of DIG Texas Blueprints:Unit Collection
× Overview According to modern astronomical observations and calculations, our universe came into being approximately 13.8 billion years ago with a "big bang." Within an infinitesimal amount of ...

The Solar System part of DIG Texas Blueprints:Unit Collection
Unit Storyline 4.6 billion years ago, in a now-familiar corner of the Universe within an arm of the emerging Milky Way galaxy, a randomly-moving cloud of interstellar gases and dust several light-years across ...

Earth is a Habitable Planet part of DIG Texas Blueprints:Unit Collection
Unit Storyline Earth at the dawn of its existence was an unwelcoming furnace of volcanic activity and noxious gases, hardly the verdant home to countless species that we know today. This transformation required ...

Mapping Earth part of DIG Texas Blueprints:Unit Collection
Unit Storyline Once humans began exploring Earth they developed navigation and mapping methods, and ways to record and communicate their understanding. Others followed after, expanding previous accomplishments and ...

Natural Hazards: Never Turn Your Back on Mother Earth part of DIG Texas Blueprints:Unit Collection
× Overview The Earth is in a constant state of change, with complex and dynamic subsystems interacting at different size, time and energy scales. Change may be sudden or gradual. In some cases, natural Earth ...

Journey to the Center of the Earth: Earth's Structure part of DIG Texas Blueprints:Unit Collection
Unit Storyline The Earth works in mysterious ways but Geophysicists are up to the challenge. Although the deepest well ever drilled, the Kola well in Russia, only penetrated 0.2% of the Earth's depth, ...

Fossil Record and Evolution part of DIG Texas Blueprints:Unit Collection
× Overview Our Earth has been around for approximately 4.6 billion years. Fossils, or rocks with evidence that life, show that life formed on Earth nearly four billion years ago. The fossil record helps ...