How does light travel? part of CLEAN Collection

This activity includes two experiments that explore shadows and light and how mirrors can demonstrate how light travels.

What makes a gas, a greenhouse gas? part of CLEAN Collection

Students act out 4 different molecules (nitrogen, oxygen, carbon dioxide and water vapor) to discover which ones are greenhouse gases and which ones are not.

Examining Sea Level Rise and Differential Shoreline Response part of CLEAN Collection

In this activity, students make and manipulate physical shoreline models to discover the features of resilient shorelines and to critically evaluate the impacts of rising seas. Students will use ...

Our Changing Atmosphere part of CLEAN Collection

Here students use data from the NOAA carbon dioxide monitoring sites, such as Mauna Loa, to graph the Keeling Curve for themselves on large sheets of paper. Each group graphs one year, and the graphs ...

Ocean Acidification in a Cup part of CLEAN Collection

This model of ocean-atmosphere interaction shows how carbon dioxide gas diffuses into water, causing the water to become more acidic. The video demonstration and instruction provide an explanation of ...

Thermal Expansion Model part of CLEAN Collection

This activity allows students to demonstrate the thermal expansion of water for themselves using water bottles and straws. The discussion allows them to explore the connection between this concept ...

How Do Long and Short EM Waves Interact with the Earth's Atmosphere? part of CLEAN Collection

This is a kinesthetic activity that demonstrates how shortwave radiation emitted by the sun and longwave thermal radiation emitted by the earth interact differently in the atmosphere. It allows ...

Temperature, Salinity and Water Density Activity part of CLEAN Collection

This is a simple but effective scientific experiment to study the impacts of temperature and salinity on water density.

What is a Model? part of CLEAN Collection

In this interactive activity students will create a very simple climate model. They use worksheets, chips/tokens, and follow rules for heat exchange. The activity only models temperature but there ...

What's Causing Sea-Level Rise? Land Ice Vs. Sea Ice part of CLEAN Collection

This activity allows students to explore sea level rise. The experiment allows them to test whether land ice and/or sea ice contribute to sea level rise as they melt.