Time, space, and energy phenomena can be observed at various scales using models to study systems that are too large or too small. Atoms form molecules that range in size from two to thousands of atoms.Īlignment agreement: Thanks for your feedback! Solids may be formed from molecules, or they may be extended structures with repeating subunits Substances are made from different types of atoms, which combine with one another in various ways. Matter is transported into, out of, and within systems.ĭevelop models to describe the atomic composition of simple molecules and extended structures.ĭevelop a model to predict and/or describe phenomena. A model showing that gases are made from matter particles that are too small to see and are moving freely around in space can explain many observations, including the inflation and shape of a balloon and the effects of air on larger particles or objects. Matter of any type can be subdivided into particles that are too small to see, but even then the matter still exists and can be detected by other means. This lesson focuses on the following Three Dimensional Learning aspects of NGSS:Īlignment agreement: Thanks for your feedback! Name a few engineering careers that involve electricity.ĭevelop a model to describe that matter is made of particles too small to be seen.Ĭlick to view other curriculum aligned to this Performance Expectation.Compare and contrast two forms of electricity-current and static.Explain that static electricity is the buildup of a charge (either net positive or net negative) over a surface.Correlate the flow of water with the flow of electricity in a system.
Relate the flow of electrons to current.Electricity is present everywhere in our modern lives and engineers who specialize in electricity (electrical engineers) make that possible.Īfter this lesson, students should be able to: In addition, many engineering careers require a fundamental knowledge of electricity in order to invent and design technologies and products that we depend upon every day. This engineering curriculum aligns to Next Generation Science Standards ( NGSS).Īn understanding of electricity is important for general technological literacy. A PowerPoint® presentation is included, with review question/answer slides, as well as assessment handouts to practice using electricity-related terms through storytelling and to research electricity-related and electrical engineering careers. They learn the differences between static and dynamic forms of electricity.
Then water and electrical systems are compared as an analogy to electrical current.
They compare conductors and insulators based on their capabilities for electron flow. Students first review the structure of atoms and then learn that electrons are the particles behind electrical current and the motivation for electron movement. The main concepts presented are the science of electricity and the careers that involve an understanding of electricity. They are also introduced to the idea of engineers making, controlling and distributing electricity. Students are introduced to the concept of electricity by identifying it as an unseen, but pervasive and important presence in their lives.
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