4D/P1 ( Grades: K-2 ): Objects can be described in terms of their properties. Some properties, such as hardness and flexibility, depend upon what material the object is made of, and some properties, such as size and shape, do not.
4D/P2 ( Grades: K-2 ): Things can be done to materials to change some of their properties, but not all materials respond the same way to what is done to them.
5C/H8 ( Grades: 9-12 ): A living cell is composed of a small number of chemical elements mainly carbon, hydrogen, nitrogen, oxygen, phosphorous, and sulfur. Carbon, because of its small size and four available bonding electrons, can join to other carbon atoms in chains and rings to form large and complex molecules.
6A/M1 ( Grades: 6-8 ): Like other animals, human beings have body systems for obtaining and deriving energy from food and for defense, reproduction, and the coordination of body functions.
6C/H6 ( Grades: 9-12 ): The human body is a complex system of cells, most of which are grouped into organ systems that have specialized functions. These systems can best be understood in terms of the essential functions they serve for the organism: deriving energy from food, protection against injury, internal coordination, and reproduction.
6C/M1 ( Grades: 6-8 ): Organs and organ systems are composed of cells and help to provide all cells with basic needs.
NSTA National Science Education Standards
B.1.2 ( Grades: K-4 ): Objects are made of one or more materials, such as paper, wood, and metal. Objects can be described by the properties of the materials from which they are made, and those properties can be used to separate or sort a group of objects or materials.
B.1.3 ( Grades: K-4 ): 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.
B.2.3 ( Grades: K-4 ): The position and motion of objects can be changed by pushing or pulling. The size of the change is related to the strength of the push or pull.