National Park Service
Living & Non-Living Interactions
What better way to learn about ecosystems than by getting outside and observing them first hand? Accompanying a field trip to a local park or outdoor space, this series of collaborative activities engages children in...
Curated OER
Coloring Fabrics With Dyes from Plant Materials K-12 Experiments & Background Information
Young scholars investigate the effects of acid and bases on dyes made with plant materials. In this chromatography lesson students predict color outcomes and complete a lab activity on color combinations.
Energy for Sustainable Development
Esd Bulgaria: Kids & Energy: Electricity
Electricity is the flow of electrical power or charge. It is a secondary energy source which means that we get it from the conversion of other sources of energy, like coal, natural gas, oil, nuclear power and other natural sources, which...
Energy for Sustainable Development
Esd Bulgaria: Kids & Energy: Energy Timelines: Electricity
A brief history of electricity, a secondary energy source that is produced by converting primary energy sources, such as oil or nuclear power.