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Cell Structure and Function: The Molecular Machinery of Life Science Object
Science Object
Cell Structure and Function: The Molecular Machinery of Life
Grade Level: Elementary School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the third of four Science Objects in the Cell Structure and Function SciPack. It explores cells at the molecular level. It is at the molecular level that many of the basic functions of organisms are carried out such as, protein synthesis, extraction of energy from food, and replication....  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the third of four Science Objects in the Cell Structure and Function SciPack. It explores cells at the molecular level. It is at the molecular level that many of the basic functions of organisms are carried out such as, protein synthesis, extraction of energy from food, and replication. All cells have similar types of complex molecules that are involved in these basic activities of life. These macromolecules include proteins, lipids, carbohydrates and nucleic acids, which interact in a soup, about 2/3 water, surrounded by a membrane that controls what can enter and leave the cell. Proteins act in several ways including enzymes that are responsible for catalyzing chemical actions, receptor molecules in the cell membrane, hormones that travel distances to communicate regulatory processes and structurally as the physical fibers of the cell. The cell’s energy comes from food in the form of sugars or from stored fats (lipids). Lipids are also a critical component in the structure of the cell membrane. The cell membrane in association with carbohydrates and proteins, regulate the flow of water, ions, and other molecules into and out of the cells. Nucleic acids contain instructions for genes that determine structural and chemical processes through protein synthesis.s.
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Chemical Reactions: A World of Reactions Science Object
Science Object
Chemical Reactions: A World of Reactions
Grade Level: Elementary School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the first of four Science Objects in the Chemical Reactions SciPack. It explains that chemical reactions occur all around us, for example in health care, cooking, cosmetics, and automobiles. An enormous variety of biological, chemical, and physical phenomena can be explained by changes...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the first of four Science Objects in the Chemical Reactions SciPack. It explains that chemical reactions occur all around us, for example in health care, cooking, cosmetics, and automobiles. An enormous variety of biological, chemical, and physical phenomena can be explained by changes in the arrangement and motion of atoms and molecules. An atom's electron configuration, particularly the outermost electrons, determines how the atom can interact with other atoms. Atoms form bonds to other atoms by transferring or sharing electrons. Carbon atoms can bond to one another in chains, rings, and branching networks to form a variety of structures, and complex chemical reactions involving these molecules take place constantly in every cell in living objects.
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Plate Tectonics: Plate Interactions Science Object
Science Object
Plate Tectonics: Plate Interactions
Grade Level: Elementary School, High School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the third of five Science Objects in the Plate Tectonic SciPack. It identifies the events that may occur and landscapes that form as a result of different plate interactions. The areas along plate margins are active. Plates pushing against one another can cause earthquakes, volcanoes,...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the third of five Science Objects in the Plate Tectonic SciPack. It identifies the events that may occur and landscapes that form as a result of different plate interactions. The areas along plate margins are active. Plates pushing against one another can cause earthquakes, volcanoes, mountain formation, and very deep ocean trenches. Plates pulling apart from one another can cause smaller earthquakes, magma rising to the surface, volcanoes, and oceanic valleys and mountains from sea-floor spreading. Plates sliding past one another can cause earthquakes and rock deformation.
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Plate Tectonics: Consequences of Plate Interactions Science Object
Science Object
Plate Tectonics: Consequences of Plate Interactions
Grade Level: Elementary School, High School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the fourth of five Science Objects in the Plate Tectonic SciPack. It identifies the events that may occur and landscapes that form as a result of different plate interactions. The areas along plate margins are active. Plates pushing against one another can cause earthquakes, volcanoes,...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the fourth of five Science Objects in the Plate Tectonic SciPack. It identifies the events that may occur and landscapes that form as a result of different plate interactions. The areas along plate margins are active. Plates pushing against one another can cause earthquakes, volcanoes, mountain formation, and very deep ocean trenches. Plates pulling apart from one another can cause smaller earthquakes, magma rising to the surface, volcanoes, and oceanic valleys and mountains from sea-floor spreading. Plates sliding past one another can cause earthquakes and rock deformation.
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Plate Tectonics: Lines of Evidence Science Object
Science Object
Plate Tectonics: Lines of Evidence
Grade Level: Elementary School, High School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the fifth of five Science Objects in the Plate Tectonics SciPack. It explores the physical, geographical, and geological evidence for the theory of continental drift and plate tectonics. Plate tectonics provide a unifying framework for understanding Earth processes and history, and...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the fifth of five Science Objects in the Plate Tectonics SciPack. It explores the physical, geographical, and geological evidence for the theory of continental drift and plate tectonics. Plate tectonics provide a unifying framework for understanding Earth processes and history, and is supported by many lines of evidence. Over geologic time, plates move across the globe creating different continents (and positions of continents).
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Resources and Human Impact: Earth as a System Science Object
Science Object
Resources and Human Impact: Earth as a System
Grade Level: Elementary School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the first of four Science Objects in the Resources and Human Impact SciPack. It explores how human beings, who live within and depend on Earth’s ecosystems, modify the land, ocean, and atmosphere. In all environments, organisms, including humans,...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the first of four Science Objects in the Resources and Human Impact SciPack. It explores how human beings, who live within and depend on Earth’s ecosystems, modify the land, ocean, and atmosphere. In all environments, organisms, including humans, cooperate or compete with one another for resources. These resources include food, air, water, and space. The size and rate of growth of all species, including humans, are affected by these environmental factors. In turn, these environmental factors are affected by the size and rate of growth of a population. Populations are limited in growth by the carrying capacity of the environment, which is the amount of life any ecosystem can support with its available space, energy, water, and food.
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Resources and Human Impact: Population Growth, Technology, and the Environment Science Object
Science Object
Resources and Human Impact: Population Growth, Technology, and the Environment
Grade Level: Elementary School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the second of four Science Objects in the Resources and Human Impact SciPack. It explores how technology can solve problems, but at the same time, can also create new strains on the environment. Improved technology used for harvesting food, coupled...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the second of four Science Objects in the Resources and Human Impact SciPack. It explores how technology can solve problems, but at the same time, can also create new strains on the environment. Improved technology used for harvesting food, coupled with the technology of improved sanitation, has accelerated the growth of the human population. A larger human population increases the impact on the environment and its resources, many of which are limited and non renewable. Due to the rapid growth of the human population and their use of technology in many parts of the world, humans have exceeded the carrying capacity of their environment, compromising human health.
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Resources and Human Impact: Environmental Degradation Science Object
Science Object
Resources and Human Impact: Environmental Degradation
Grade Level: Elementary School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the third of four Science Objects in the Resources and Human Impact SciPack. It explores how human activities, such as reducing the amount of forest cover, increasing the amount and variety of chemicals that enter the atmosphere, intensive farming...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the third of four Science Objects in the Resources and Human Impact SciPack. It explores how human activities, such as reducing the amount of forest cover, increasing the amount and variety of chemicals that enter the atmosphere, intensive farming and fishing, and consuming fossil fuels have changed Earth’s land, oceans, and atmosphere. Although the land, atmosphere, and the oceans have a limited capacity to absorb wastes and recycle materials naturally, humans have disrupted these natural cycles. Fresh water, limited in supply, is essential for life and most industrial processes. Overuse and pollution of rivers, lakes, oceans, and groundwater reduces the availability and suitability of these resources for all organisms. Technology used in the extraction and consumption of fossil fuels needed to meet the growing human demand has increased the depletion of nonrenewable energy resources such as fossil fuels, and degraded or altered the environment, both locally and globally.
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Resources and Human Impact: Using Technology to Address Resource Use Issues Science Object
Science Object
Resources and Human Impact: Using Technology to Address Resource Use Issues
Grade Level: Elementary School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the last of four Science Objects in the Resources and Human Impact SciPack. It explores how human beings impact other species and the ecosystems in which they live. Due to our role in changing the environment, humans have a responsibility for...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object, co-developed between NOAA and NSTA, is the last of four Science Objects in the Resources and Human Impact SciPack. It explores how human beings impact other species and the ecosystems in which they live. Due to our role in changing the environment, humans have a responsibility for preserving their habitat. There are a variety of approaches to reducing or reversing the human impact on the environment such as limiting population growth, reducing resource use, modifying population distribution, recycling resources, and the wise use of technology to solve problems. Managing resources by cleaning up polluted air, water, or soil or restoring depleted soil, forests, or fishing grounds can be difficult and costly but are critical for human health. Alternative energy resources such as wind, tides, and solar radiation can be utilized to reduce the consumption of fossil fuel-based energy sources. Social, political, and economic factors involve tradeoffs that will strongly influence the types and extent to which technologies will be developed and used.
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Rocks: Categories by Process Science Object
Science Object
Rocks: Categories by Process
Grade Level: Elementary School, High School, Middle School
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the first of four Science Objects in the Rocks SciPack. It provides an introduction to what rocks are, how and where they form, and what we can tell about a rock’s formation by making observations about its characteristics. Different rocks have different compositions (element and...  [view full summary]
Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the first of four Science Objects in the Rocks SciPack. It provides an introduction to what rocks are, how and where they form, and what we can tell about a rock’s formation by making observations about its characteristics. Different rocks have different compositions (element and mineral assemblages) and textures (grain size, orientation, etc.) Important observations of rock include characteristics of both a sample of the rock and its larger geologic context and natural setting. Observations of rocks can tell us about the processes and the environment in which they formed. The major categories of Earth’s rocks include igneous rock, sedimentary rock, and metamorphic rock.
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