Curated OER
Reflections on Earth: Exploring Planet Earth from Space
Students examine satellite images of Earth and contrast images at different scales. In this exploring Earth from space lesson plan, students use satellite images to contrast images at different scales, calculate distances from the scale...
CK-12 Foundation
Ck 12: Life Science: 1.6 Microscope
Learn about the different types of microscopes, and how they can help scientific investigation.