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Results 11 - 20 of 209 DLESE Reviewed Collection = DLESE Reviewed Collection <<  1 2 3 4 5 6  >>
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The purpose of this resource is to measure soil water content by mass. Students collect soil samples with a trowel or auger and weigh them, dry them, and then weigh them again. The soil water content is determined by calculating the difference between the wet sample mass and the dry sample mass. Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Classroom activity, Field activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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
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The purpose of this resource is to determine the rate at which water soaks into the ground. Students place two cans into the soil and add water to them to a depth of at least 5 cm. Students measure and record the time it takes the water level to drop a fixed 2 - 4 cm distance. Students repeat the measurement to determine how easily water moves vertically through the soil. Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Field activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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
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The purpose of this resource is to measure the water content of soil based on the electrical resistance of soil moisture sensors. Students install soil moisture sensors in holes that are 10 cm, 30 cm, 60 cm, and 90 cm deep. They take daily readings of soil moisture data by connecting a meter to the sensors and using a calibration curve to determine the soil water content at each depth. Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Field activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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
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The purpose of this resource is to introduce the different particle sizes of soils and the properties which each contributes to the soil character. Students make mud pies by adding water to the various soil components, letting them dry and observing the pie's characteristics. Students sift soil to remove organic materials and pebbles. They then sift the soil with smaller meshed sieves to separate ... Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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
Comment on this resource
The purpose of this resource is to measure the soil particle density of each horizon in a soil profile. Students weigh a sample of dry, sieved soil from a horizon, mix it with distilled water and then boil the mixture to remove any air. The mixture cools for a day and then students add water until the volume of the mixture is 100 mL. Students measure the temperature and mass of the final mixture and ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity, Field activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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
Comment on this resource
The purpose of this resource is to sure the distribution of different sizes of soil particles in each horizon of a soil profile. Using dry, sieved soil from a horizon, students mix the soil with water and a dispersing solution to completely separate the particles from each other. Students shake the mixture to fully suspend the soil in the water. The soil particles are then allowed to settle out of ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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
Comment on this resource
The purpose of this resource is to develop an understanding of some of the relationships between soils of different types and water. Students will time the flow of water through soils with different properties and measure the amount of water held in these soils. They will also experiment with the filtering ability of soils by testing the pH of the water before and after it passes through the soil ... Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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
Comment on this resource
The purpose of this resource is to define a soil characterization site. The following factors are defined: location, latitude, longitude, elevation, aspect (the direction of the steepest slope across an exposed soil site) and landscape position and slope (describes the contours of the land at the soil characterization site). Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Field activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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
Comment on this resource
The purpose of this resource is to introduce students to gravemetric measurements - calculating the amount of water in a soil sample or other substance by weighting it before and after drying. Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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
Comment on this resource
The purpose of this resource is to measure near-surface soil temperatures. Students measure soil temperatures at 5 cm and 10 cm depths using a soil thermometer. Students will be able to perform a soil thermometer calibration, carry out soil temperature measurements accurately and precisely and record and report soil temperature data. Students will be able to relate soil temperature measurements to ... Full description.
Grade level: Primary (K-2), Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Field activity
Subject: Soil science
 
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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
Results 11 - 20 of 209 <<  1 2 3 4 5 6  >>