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While engaged in this activity students will explore phytoplankton, the food of tiny marine animals, particularly krill. Students will prepare a hay infusion in two identical glass aquarium tanks or a 1-liter glass jar and expose one to 24 hours of continuous light, and the other for only four hours during the school day, with all light blocked off by opaque material during the remaining hours. They ... Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Lab activity
Subject: Biological oceanography
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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Assessments: Read (1)
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This experiment helps students understand that ultraviolet (UV) radiation is present in natural outdoor light and that the intensity of the light varies with season and time of day. After completing this activity, students will be able to demonstrate that UV radiation can be blocked or filtered by various substances. The page contains detailed background material, learning goals, alignment to national ... Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Lab activity
Subject: Atmospheric science, Environmental science, Physics
 
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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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In this activity students work as a team to determine the effect salt has on plant germination. They then use their lab data to create a report on how the increasing salt concentrations affected the germination of the seeds and at what salt concentration no seeds will germinate. Students will discover that salt buildup is an existing or potential hazard on almost all of the 42 million acres of irrigated ... Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Lab activity
Subject: Agricultural science, Soil 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
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This National Aeronautics and Space Administration (NASA) site provides classroom resources about the Moon. A teacher's guide contains basic detailed information about the Moon, such as the lunar landscape, craters, and Moon rocks. The lesson plan and activities sections cover phases of the Moon, lunar landforms, a Lunar Prospector model, and orbits. Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Classroom activity, Lab activity, Guide for instructor, Lesson plan, Photograph
Subject: Space science, Technology
 
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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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Results 1 - 4 of 4