In this activity, students are introduced to the concepts of static and kinetic friction and discover how the type of surface involved affects the strength of the frictional force.

In this lesson, students learn the concept of metamorphosis in an organism's life cycle by studying the growth and development of butterflies, frogs, and dragonflies.

Lesson is posted with permission from the Perkins School for the Blind.

In this activity, students will measure distance traveled and time traveled to determine velocity.

In this activity, students use numbered cards to represent genes and demonstrate the four types of chromosomal mutations.

In this activity, students review the names and formulas of the major polyatomic ions by playing a bingo-type game.

In this activity, students will compare the rate of reaction using ground chalk and whole pieces of chalk when reacted with vinegar.

In this activity students model seafloor spreading and the position of newer rock and older rock in relation to the mid-oceanic ridge.

In this activity, students explore means of physically separating a mixture using dissolving, filtration, and evaporation.

In this activity, students are introduced to the three states of matter by examining tactile models illustrating the characteristics of particles in each state. Note: This activity is specifically designed to be used with visually impaired students, but can be used with any group of students.

In this activity students play the roles of the rotating Earth and Moon in order to model tides.

In this activity, students will use a trundle wheel to measure distance and a stopwatch to measure time.

In this activity, students put cotton balls, crushed paper, and sand in boxes with different sizes to explore the relationship between mass, volume, and density.