FOSS Third Edition

Modules that engage students and teachers in enduring experiences that lead to deeper understanding of the natural and designed world.
FOSS Third Edition Air and Weather

Air and Weather

The Air and Weather Module provides experiences that heighten primary students' awareness, curiosity, and understanding of Earth's dynamic atmosphere

FOSS Third Edition Animals Two by Two

Animals Two by Two

Animals Two by Two provides young students with close and personal interaction with some common land and water animals.

FOSS Third Edition Balance and Motion

Balance and Motion

We live in a dynamic world where everything is in motion in different ways, as objects, move from one place to another, vibrate, or rotate around and around.

FOSS Third Edition Energy and Electromagnetism

Energy and Electromagnetism

The Energy and Electromagnetism Module introduces or reinforces concepts in physical science dealing with energy and change.

FOSS Third Edition Environments


Through the study of different ecosystems, students build an understanding of the relationships between organisms and their environments.

FOSS Third Edition Insects and Plants

Insects and Plants

The Insects and Plants Module provides experiences with the life sequences of a number of insects.

FOSS Third Edition Living Systems

Living Systems

The Living Systems Module takes a look at life at every level of organization.

FOSS Third Edition Materials In Our World

Materials In Our World

The Materials in Our World Module provides experiences that heighten students' awareness, curiosity, and understanding of the physical world.

FOSS Third Edition Measuring Matter

Measuring Matter

The Measuring Matter Module introduces students to tools and procedures for comparing matter in its common states of solid, liquid, and gas.

FOSS Third Edition Mixtures and Solutions

Mixtures and Solutions

The Mixtures and Solutions Module introduces students to the properties and behaviors of substances

FOSS Third Edition Motion, Force, and Models

Motion, Force, and Models

The Motion, Force, and Models Module focuses on the physical science concepts of motion and force.

FOSS Third Edition Pebbles, Sand and Silt

Pebbles, Sand and Silt

The Materials in Our World Module provides experiences that heighten students' awareness, curiosity, and understanding of the physical world

FOSS Third Edition Plants and Animals

Plants and Animals

The Plants and Animals Module provides experiences with structures of plants, so that students discover ways to propagate new plants from mature plants.

FOSS Third Edition Soils, Rocks and Landforms

Soils, Rocks and Landforms

The Soils, Rocks, and Landforms Module provides students with firsthand experiences with soils, rocks, and minerals, and modeling experiences to study changes to rocks and landforms at Earth's surface.

FOSS Third Edition Solids and Liquids

Solids and Liquids

The Solids and Liquids Module provides opportunities for students to observe, describe properties and behaviors of solids and liquids, as well as engage in scientific and engineering practices.

FOSS Third Edition Structures of Life

Structures of Life

In the Structures of Life Module, students observe, compare, categorize, and care for a selection of organisms.

FOSS Third Edition Sun, Moon, and Planets

Sun, Moon, and Planets

The Sun, Moon, and Planets Module focuses on Earth's place in the solar system.

FOSS Third Edition Trees and Weather

Trees and Weather

The Trees and Weather Module provides systematic investigations of trees and leaves over the seasons to bring students to a better understanding of trees' place at school and in the community.

FOSS Third Edition Water


The Water Module provides students with experiences to explore the properties of water, changes in water, interactions between water and other earth materials, and how humans use water as a natural resource.

FOSS Third Edition Weather on Earth

Weather on Earth

The constant renewal of water on Earth's land surfaces by the activities in the atmosphere is one of the defining characteristics of Earth, the water planet.