FOSS is a research-based science curriculum for grades K–8 developed at the Lawrence Hall of Science, University of California at Berkeley. Science is an active enterprise, made active by our human capacity to think. Scientific knowledge advances when scientists observe objects and events, think about how they relate to what is known, test their ideas in logical ways, and generate explanations that integrate the new information into the established order. The best way for students to appreciate the scientific enterprise, learn important scientific concepts, and develop the ability to think critically is to actively construct ideas through their own inquiries, investigations, and analyses. The FOSS program was created to engage students in these processes as they explore the natural world.

The FOSS Teacher Preparation Videos help you prepare to teach the FOSS modules. They include teacher guide information, safety precautions, set up procedures, and classroom footage.

Audio versions of FOSS Science Stories. Students can listen to the audio as they follow along in their own copies of the book. More information about these stories can be found at Fossweb.

Links to websites that enhance and enrich FOSS activities.

GRADES 5–6 MODULES
LIFE SCIENCE	PHYSICAL SCIENCE	EARTH SCIENCE	SCIENTIFIC REASONING AND TECHNOLOGY	THINKING PROCESSES
Food and Nutrition	Levers and Pulleys	Solar Energy	Models and Designs	Relating Organizing Comparing Communicating Observing
Environments	Mixtures and Solutions	Landforms	Variables
GRADES 3–4 MODULES
LIFE SCIENCE	PHYSICAL SCIENCE	EARTH SCIENCE	SCIENTIFIC REASONING AND TECHNOLOGY	THINKING PROCESSES
Human Body	Magnetism and Electricity	Water	Ideas and Inventions	Advanced organizing Comparing Communicating Observing
Structures of Life	Physics of Sound	Earth Materials	Measurement

GRADES 1–2 MODULES
LIFE SCIENCE	PHYSICAL SCIENCE	EARTH SCIENCE	THINKING PROCESSES
New Plants	Solids and Liquids	Air and Weather	Beginning organizing Comparing Communicating Observing
Insects	Balance and Motion	Pebbles, Sand, and Silt

KINDERGARTEN MODULES
LIFE SCIENCE		PHYSICAL SCIENCE		THINKING PROCESSES
Trees	Animals Two by Two	Wood and Paper	Fabric	Comparing Communicating Observing