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The purpose of this resource is to further students' understanding of the causes of seasonal change using visualizations to compare the effects of incoming solar energy in the two hemispheres. The class reviews global visualizations of incoming sunlight and surface temperature and discusses seasonal change. Students use the visualizations to support inquiry on the differences in seasonal change in ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Environmental science
 
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Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
Pedagogical help
Misconceptions: Read (2)
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This resource is included in the following collections:
GLOBE Program Collection    Browse collection
DLESE Reviewed Collection (DRC) DLESE Reviewed Collection    Browse collection
Pedagogically Annotated Collection     Browse collection
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This activity helps students to understand the many roles that polar sea ice plays in the systems that maintain our planet, by first helping them to understand the process of the formation of ice in oceanic regimes. Students will use an inquiry based lab experience relating salt content to the ability of water to freeze in order to begin this study. Specifically, they will design an experiment to ... Full description.
Grade level: Middle (6-8)
Resource type: Lab activity
Subject: Cryology
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Skills: Read (1)
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This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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This activity has students observe how ozone can damage rubber bands and through a comparison, they will be able to determine the relative ozone levels for different locations. After completing this activity students will understand that tropospheric ozone is often called bad ozone because it breaks down certain materials, be able to explain that concentrations of ozone are not uniform, and demonstrate ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Lab activity
Subject: Atmospheric science, Chemistry, Environmental science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Skills: Read (1)
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This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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Students investigate variables that may influence the growth of crystals which they have learned to make. There are two options for implementing this activity. The first is open-ended, with the students deciding what variables affect crystal growth and then deciding on the manipulating variables they would like to study. The second is prescriptive and explains to students how to test three variables ... Full description.
Grade level: Intermediate (3-5), Middle (6-8)
Resource type: Lab activity
Subject: Chemistry, Mineralogy or petrology
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Skills: Read (1)
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This resource requires :
 
This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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This lesson uses a discrepant event to pique curiosity and provide an excellent metaphor for a problem in science that can be addressed in a scientific way. Water is poured into a magic box, and out comes a much larger volume of water (or other liquid). Students will learn that science is uncertain because scientists can make more than one workable model to explain their observations. Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Lesson plan
Subject: History and philosophy of science
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Assessments: Read (1)
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This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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This slide show provides basic information on the three major rock types and the rock cycle. Diagrams of the rock cycle explain the processes and changes that connect the three rock types and illustrate how one type can be changed into another. Each of the three types (sedimentary, igneous, metamorphic) are described and illustrated with photographs. Addresses for websites with additional information ... Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Presentation / Demo
Subject: Mineralogy or petrology
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Misconceptions: Read (1)
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This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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In this activity, students will learn to measure the density of various minerals. The activity will reinforce the usefulness of density as a physical test for identification of minerals. Using a selection of mineral specimens of varying densities, they will weigh each one in air, immerse it in a graduated cylinder of water, and measure the amount of water displaced by the specimen. Dividing the weight ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Lab activity
Subject: Mineralogy or petrology
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Skills: Read (1)
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This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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This lesson shows students that age-dating rocks involves counting atoms and comparing the counts. Students use simulated rock samples, which show a highly magnified selection of 128 atoms, each sample with a different proportion of the atoms of two different elements: a parent radioisotope, and its daughter product. By counting the parent radioactive atoms and knowing the half-life of those atoms, ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Lesson plan
Subject: Geologic time
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Misconceptions: Read (1)
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This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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This explanation of the hydrologic cycle discusses evaporation, transpiration, condensation, precipitation, runoff, percolation, groundwater, and the water table. There is a diagram and a description of each as well as a discussion of the dynamics of the cycle, which powered by the Sun. In addition there are links that lead to all parts of the Properties of Water menu. Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Illustration - scientific, Ref. material
Subject: Atmospheric science, Environmental science, Hydrology
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Misconceptions: Read (1)
Related resources and collections
This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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In this lesson, students will learn that geological time can be measured in several different ways, providing independent lines of evidence for measuring deep time and sequencing geological and biological events of the past. Students explore different methods of measuring geological time, comparing the time dimensions, mechanisms, and materials used for each. Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Lesson plan
Subject: Geologic time
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Misconceptions: Read (1)
Related resources and collections
This resource is included in the following collections:
DLESE Community Collection (DCC)    Browse collection
Pedagogically Annotated Collection     Browse collection
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