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Results 1 - 5 of 5 DLESE Reviewed Collection = DLESE Reviewed Collection
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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)
Related resources and collections
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 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
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Assessments: 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 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)
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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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
 
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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In this activity, students will investigate the weathering of rocks by chemical processes. They will use effervescent cleansing tablets as a model for rock, and vary surface area, temperature, and acidity to see how rapidly the "rock" dissolves. This investigation will help them understand three of the factors that affect the rate of chemical weathering and develop better understanding of how to design ... Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Lab activity
Subject: Chemistry, Geology
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Pedagogical help
Skills: Read (2)
Related resources and collections
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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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