2EarthScience

Back to 2nd grade =Earth Sciences=

PEBBLES, SAND & SILT
[|Teacher Preparation Video] helps you prepare for the unit

Earth is made of materials that have distinct properties and provide resources for human activities. As a basis for understanding this concept:
Students know how to compare the physical properties of different kinds of rocks and know that rock is composed of different combinations of minerals. Students know smaller rocks come from the breakage and weathering of larger rocks. [|Rock and Soil Online Experiments] Students know that soil is made partly from weathered rock and partly from organic materials and that soils differ in their color, texture, capacity to retain water, and ability to support the growth of many kinds of plants. Students know that fossils provide evidence about the plants and animals that lived long ago and that scientists learn about the past history of Earth by studying fossils. Students know rock, water, plants, and soil provide many resources, including food, fuel, and building materials, that humans use.

Whole Class Presentations
[|Foss Web] Ask a scientist [|Rock and the Rock Cycle] Adjustable reading level [|Earth Lab] Pictures of various rocks [|The Dirt on Soil]

Independent Online Games
[|Find Earth Materials] [|Build a Volcano] Build your own volcano, watch it erupt and build another of a different type. [|Experiment with Rocks and Soil]

Online Resources
[|Rock Hounds]