/resource/signing-declaration-independence/6th-grade/

A cell is the smallest unit that is typically considered alive and is a fundamental unit of life. All living organisms are composed of cells, from just one (unicellular) to many trillions (multicellular). Cell …

Oct 19, 2023 · On February 11, 660 BCE, the legendary Emperor Jimmu established what would become the nation of Japan.

Jul 31, 2019 · Where National Geographic Explorers start. Explorer Since 2019 Leonel Roget Naturalist Biography Leo Roget is a naturalist and conservationist with a background in communications and …

Nov 12, 2024 · Image Water in Three States Water can exist in three different physical states—as a gas, liquid, and a solid—under natural conditions on Earth. Regardless of its physical state, they all have …

Nov 2, 2021 · "Today, we welcome the joint announcement by Colombia, Costa Rica, Ecuador and Panama on the declaration of a marine protected area covering the Marine Corridor of the Eastern …

Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.

Apr 9, 2012 · Where National Geographic Explorers start. Explorer Since 2012 Kevin Anthony McLean Ecologist and Tree Climber Biography Kevin McLean is an ecologist studying wildlife in tropical forest …

Oct 30, 2024 · A food staple is a food that makes up the dominant part of a population’s diet. Food staples are eaten regularly—even daily—and supply a major proportion of a person’s energy and …

Jan 8, 2024 · If you had to draw the boundaries of the Earth's oceans on a map, would you be able to? The answer is no —because there is really only one "world ocean." Oceanographers have divided …