Third Grade Science

Send by email

Third Grade topics typically include

Water and watersheds—
what water is and how water works, qualities and properties of water, what makes a watershed and which one(s) we live in, parts and functions of watersheds, animal and plant life in and around water. Numerous field trips to Bull Run reservoir, Portland Water Bureau, salmon migration sites, following local rivers, water treatment plant, Willamette River tour, and more.

Electric and electromagnetic energy—
direct current; series and parallel circuits; light bulbs, fuses, and switches; cells and batteries; conductors and insulators; electromagnets, buzzers, generators and motors; electric cars.


Metric system measurement—
more experience and practice with basic metric units of distance (M, dm, cm, mm) and mass (Kg, gm); introduction to liquid volume (L, dl, cl, ml).

Sea life and marine communities—
explorations of marine life and animal classification; interaction and functions of organisms in ecosystems. Visits to Hatfield Marine Science Center and Oregon Coast Aquarium. Culminates with a three-day trip to Whale Cove on the Oregon coast to investigate tide pools and beaches.

Fossils, evolution, and geologic time—
how fossils are formed and what they are; how fossils tell us about the past; how scientists have developed a timeline and “family tree” of the evolution of life on earth.