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This brief (1:46) video explains the stratospheric ozone layer and its role in absorbing harmful UV radiation from the sun. The visualization shows how the thickness of the ozone layer varies with air flow aloft and seasons, and where the biggest... (View More)

Audience: Informal education
Materials Cost: Free

The effects of gravity on near-surface objects and those in Earth orbit are explored in this activity. A brief explanation, links to three related videos, a teacher's guide and short assessment are included.

Keywords: Gravity
Audience: Elementary school, Middle school
Materials Cost: Free

This brief (2:04) video explains the ozone hole over Antarctica - the annual thinning of stratospheric ozone caused by manufactured chemicals. Twenty-five years after the Montreal Protocol limited the use of ozone depleting chemicals, scientists are... (View More)

Audience: Informal education
Materials Cost: Free

This video features NASA scientist Claire Parkinson explaining atmospheric carbon dioxide levels seen in measurements collected at the Mauna Loa observatory since 1958 and recent global model output. The seasonal cycle of plants on land and in the... (View More)

This brief (1:58) video provides an explanation of El Niño and its impact on the marine food web. Satellite images of a large El Niño in 2015 show the impact on both water temperature and phytoplankton blooms. ClimateBits videos are designed for... (View More)

Audience: Informal education
Materials Cost: Free

This brief (1:37) video explains the essential Earth science concept of solar radiation - the source of most energy on Earth. ClimateBits videos are designed for Science On a Sphere (SOS) and also available on YouTube. Links are provided to more... (View More)

Audience: Informal education
Materials Cost: Free

This brief (1:53) video describes the UV (Ultraviolet) index and presents a visual range of its monthly strength at Earth's surface. The factors that influence that range- the sun's angle, ozone thickness, clouds, air pollution, surface reflection,... (View More)

Audience: Informal education
Materials Cost: Free

Students are introduced to the purposes, benefits and challenges of citizen science projects. Examples of historical and current projects are presented, and evidence is provided showing why human scientific analysis is sometimes better than computer... (View More)

Microscopic meteorites routinely reach Earth's surface. While challenging to find and identify, this activity provides techniques for searching for them in the local environment.

Using the 5-E model, these lessons introduce planets, planetary systems, star types, exoplanets, transits, light curves, and the Planet Hunters citizen science project. Supplemental materials include data/image sheets. Next Generation Science... (View More)