This video segment adapted from NOVA illustrates why carbon is at the …
This video segment adapted from NOVA illustrates why carbon is at the center of life on Earth. It also asks whether carbon-based life might exist on other planets.
Learn about the many types of interspecific interactions: competition, predation, herbivory, symbiosis, …
Learn about the many types of interspecific interactions: competition, predation, herbivory, symbiosis, parasitism, mutualism, commensalism. Created by Sal Khan.
Interview an Organism gives students the opportunity to enter the world of …
Interview an Organism gives students the opportunity to enter the world of an organism. Students slow down and have a “conversation” with an organism of their choosing, asking questions that can be answered through more observation while paying attention to its surroundings and the scale of its world. It helps take students to a “next level” of observing and questioning as they learn to ask themselves questions that lead them to make deeper observations. In the process, they get to know their chosen organism.
In this Exploration Routine, students search for interesting organisms and observe them. Each pair of students chooses an organism to study, comes up with questions about the organism’s appearance and structures, while attempting to answer each one through observations. Then they move on to more probing questions about the organism’s behavior, ecosystem, and relationships to other organisms. Afterwards, students share with other pairs and then with the whole group.
Human evolution is the lengthy process of change by which people originated …
Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years. This is a multimedia presentation with videos, lesson plans, a glossary, an educators guide and more.
The document presented here accompanies the documents in the science curriculum collection. …
The document presented here accompanies the documents in the science curriculum collection. It provides a Goal Statement, Guiding Principles and Unit Introductions for Science K-5, Middle/Junior High, Physical Science, Biology, Chemistry, and Physics. The document also identifies key participants for the Virgin Islands Department of Education Science Curriculum Workgroup.
Kinetics is the study of reaction rates and how they are affected. …
Kinetics is the study of reaction rates and how they are affected. Many factors, such as concentration, pressure, temperature, and enzyme activity, can impact the rate of a reaction. For example, a molecule's kinetic energy is directly proportional to its temperature, so increasing the temperature will result in an increase in reaction rate. Created by Sal Khan.
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