Seasons Interactive provides students an opportunity to investigate the existence of seasons. In this simulation, users cause the Earth to revolve around the Sun by toggling through a calendar year. Users can compare daylight duration (in hours) and temperatures for two different scenarios of tilt: 0 and 23.5 degrees. Daylight and temperature data is provided for 4 cities located at different latitudes: Anchorage AK, Chicago IL, Quito Ecuador and Melbourne AUS. (Please point out to students that the creators have misspelled Ecuador on the simulation page.) Although the elliptical nature of Earth’s orbit is greatly exaggerated in the side view of the simulation, a top view of Earth, along with monthly distances from the Sun, is provided in the bottom right corner. This additional data will help students realize that distance from the Sun does not cause seasons. Teachers should also call attention to the disclaimer at the bottom of the page that this simulation is not to scale. Seasons Interactive is a free simulation that supports Unit F: Earth In Space of SEPUP’S Issues and Earth Science curricula.