In this interactive object, students examine how the volume and temperature of an ideal gas relate under conditions of constant pressure and quantity.

Students read different definitions of "acids" and "bases." In an interactive exercise, they identify if a substance is an acid or a base.

Learners examine how five or six groups of electrons around a central atom cause the shape of the molecule to be trigonal bipyramidal, seesaw, T-shaped, linear, octahedral, square pyramidal, or square planar. Seven examples and three interactive questions are provided in this animated activity.

In this learning activity, you'll explore the basics of prototyping for user experience design.

In this animated object, learners examine the properties of the peptide bond and how the bond relates to the structure of hair.

In this animated lesson, learners read about the disulfide bond, the second strongest chemical bond in the hair. This bond can only be altered by chemicals.

In this animated object, learners examine how the heating or cooling steps in a manufacturing process work to control a chemical reaction.

Students read an explanation of chemical formulas in this animated activity. A quiz completes the object.

Learners read about lab equipment and basic safety measures. In a quiz, they view photos and determine if the lab technicians pictured are using safe practices.

Element Symbols 1-20

Physical therapist practice areas

general pe

Identify whether the change stated is physical or chemical.