Using Aquatic Plants to Demonstrate Photosynthesis
Introduction Egeria densa, also known as Elodea densa because of its previously incorrect classification in the Elodea genus, is the most popular aquatic plant used to teach photosynthesis in the classroom. Originally from Brazil, E. densa has spread to temperate regions on all of the continents except Antarctica. Known for its bright green color and leafy stems, E. densa is an excellent oxygenating […]
Investigating Phenomena: How Can the Sun Set at Midnight?
Carolina Phenomenon Phenomena-driven science! Phenomena are observable, naturally occurring events that are everywhere and spark student questions and investigations. Ask students to observe the DCI-linked phenomena in the video and complete the attached student sheet prior to remote learning discussions. Observations: Carefully watch the sun at midnight video. Gather all the evidence you can from […]
A Brief Overview of Gravity and Gravitational Force
An introduction to Newton’s Law of Gravitation, specetime geometry, and quantum gravity. Gravity The word gravity has many definitions. As defined by dictionary.com, gravity means “the force of attraction by which terrestrial bodies tend to fall toward the center of the earth,” or “heaviness or weight,” or “serious or critical nature,” among other definitions (Dictionary.com, […]
Earth and Space Sciences in All Science Courses
Earth and space science concepts can be incorporated into biology, chemistry, and physics. What are Earth and space sciences? Earth and space sciences, an interdisciplinary course of study, applies the principles of physics, chemistry, and biology to explain observed interactions among Earth’s four primary systems–the biosphere, lithosphere, hydrosphere, and atmosphere–while recognizing Earth’s place in space […]