Science Education Resource Center at Carleton College
Serc: In Full Bloom
Students compare concentrations of harmful algal blooms using NOAA's Coastal Services Center Harmful Algal Bloom Forecasting (HABF) Project data.
Annenberg Foundation
Annenberg Learner: Journey North: Sunlight and the Seasons
This student observation guide walks learners through setting up an investigation of the seasons and their causes. Students can report their actual data right there on the page.