Los incendios forestales son un factor que contribuye a las emisiones de gases de efecto invernadero. Los científicos estiman que los incendios forestales emitieron 8 mil millones de toneladas de CO2 por año durante los últimos 20 años. Los incendios forestales tienen riesgos y beneficios que afectan a los seres humanos. En este caso, los estudiantes aprenderán sobre los riesgos y beneficios de los incendios forestales, la ciencia detrás de cómo ocurren los incendios y las condiciones que hacen que un incendio sea catastrófico. Los estudiantes evaluarán los incendios locales / regionales para determinar cómo las actividades humanas contribuyen a los incendios forestales. Los estudiantes investigarán cómo se toman las decisiones de manejo forestal para disminuir los impactos negativos de los incendios forestales y disminuir la cantidad de CO2 que se emite por esos incendios.

In this activity, students explore phase change at a molecular level. They trace the path of an atom to view intermolecular interactions and investigate how temperature relates to phase change. Upon activity completion, students will be able to give examples of phase change, explain how the input of energy into a system affects the state of matter, and describe how both latent heat and evaporative cooling play a role in changes of phase.

How does energy flow in and out of our atmosphere? Explore how solar and infrared radiation enters and exits the atmosphere with an interactive model. Control the amounts of carbon dioxide and clouds present in the model and learn how these factors can influence global temperature. Record results using snapshots of the model in the virtual lab notebook where you can annotate your observations.

This fast-paced webcast will look at how hot air balloons float and how a change in air pressure affects them.

Nanotechnology is an innovation with big potential even though it’s small in size. So small, it can’t be seen with the human eye or even your school’s microscope. In 1981, the Scanning Tunneling Microscope was invented and launched the age of nanotechnology. It can see individual atoms and even move them to create advanced nanostructures. Through an interview with Joseph Stroscio at the National Institute for Standards and Technology, students will learn about moving atoms, electron clouds and how temperature effects matter.

For more information: http://www.fcps.edu/fairfaxnetwork/innovation_nanotechnology/index.html
Twitter @FFXNetwork

See what happens when Astronaut Kjell Lindgren puts marshmallows into a vacuum in this lesson of ISS Science.

Astronaut Jack "2fish" Fischer stopped by for the latest episode of the Smithsonian's ISS Science and tried out a hands-on experiment involving boiling water.

What does kinetic energy have to do with the Space Shuttle? Find out from NASA Astronaut Ricky Arnold.

Use their knowledge of air, through a vacuum activity, to determine what will happen to objects when pressure is increased and decreased.

Lesson plan to explore how snow crystals form, atmospheric conditions that influence crystal morphology. Makes connections crystals, snow density and water content

Investigate what makes something soluble by exploring the effects of intermolecular attractions and what properties are necessary in a solution to overcome them. Interactive models simulate the process of dissolution, allowing you to experiment with how external factors, such as heat, can affect a substance's solubility.

Explore the movement of gases, liquids and solids at a molecular level, and investigate how temperature and intermolecular attractions affect phase changes.

Students learn about the definition of heat as a form of energy and how it exists in everyday life. They learn about the three types of heat transfer conduction, convection and radiation as well as the connection between heat and insulation. Their learning is aided by teacher-led class demonstrations on thermal energy and conduction. A PowerPoint® presentation and quiz are provided. This prepares students for the associated activity in which they experiment with and measure what they learned in the lesson by designing and testing insulated bottles.