Correlations to National Science Education Standards
Physical Science – Content Standard B
Properties of Objects and Materials
- Materials can exist in different states — solid, liquid, and gas. Some common materials, such as water, can be changed from one state to another by heating or cooling.
Science as Inquiry – Content Standard A
Understandings about Scientific Inquiry
- Different kinds of questions suggest different kinds of scientific investigations. Some investigations involve observing and describing objects, organisms, or events; some involve collecting specimens; some involve experiments; some involve seeking more information; some involve discovery of new objects and phenomena; and some involve making models.
Earth and Space Science – Content Standard D
Structure of the Earth System
- The solid Earth is layered with a lithosphere; hot, convecting mantle; and dense, metallic core.
Earth in the Solar System
- The Earth is the third planet from the Sun in a system that includes the Moon, the Sun, eight other planets and their Moons, and smaller objects, such as asteroids and comets. The Sun, an average star, is the central and largest body in the solar system.