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Radio waves have the longest wavelengths of all the types of electromagnetic radiation.
Students explore glaciers and other parts of the Earth system through photos from Alaska and identify how the environment changed in photos taken over the 20th century as the climate warmed.
Resource Type: Activities
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In this activity, students use models to observe that air is a fluid that flows due to temperature-driven density differences.
Resource Type: Activities
In this activity, students observe how temperature changes can create a weather front, in particular how the mixing of warm and cold air can produce thunderstorms. Water, which behaves very similarly to air, and a density tank are used in this demonstration.
Resource Type: Activities
Some snowflakes are made of a single ice crystal while other, more elaborate, snowflakes are made of as many as 200 ice crystals fused together.
Resource Type: Information
Students use a simple model to explore how roof colors can impact the temperature of an urban area.
Resource Type: Activities
Using language arts, math, and measurement skills, elementary students explore rainfall data and learn how to measure precipitation through an interactive story.
Resource Type: Activities
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Resource Type: Images