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This guide explores scientists' ideas for how the Earth got its moon, and the evidence that supports those ideas. Students can even calculate relevant lunar properties for themselves.

This guide focuses on the Earth's record temperatures and the bigger issue of climate change, including its worldwide and species-wide effects.

These discussion prompts cover the general properties and types of waves, how humans and other animals detect waves, and the design of laboratory wave detectors.

These discussion prompts cover coral reproduction, photosynthesis and respiration, greenhouse gases, fluorescence and how communities can minimize their impacts on reefs.

Students will search the Science News archives for stories related to coral reef science and coral bleaching.

Students will answer questions based on the Science News article "Rebuilding reefs."

Three activities give students the opportunity to use and interpret data to look for patterns in coral bleaching alerts.

In this guide, students will explore how scientists are working to save coral reefs, which are under threat because of climate change and other human-related activities.