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Students observe cloud type and coverage and weather conditions over a five-day period and correlate these observations. Students make and test predictions using these observations. This is a learning activity associated with the Atmosphere chapter... (View More)

Working in pairs or small groups, students use construction paper to simulate cloud cover. They estimate the percentage of cloud cover represented by torn pieces of paper on a contrasting background and assign a cloud cover classification to the... (View More)

Students will gain an understanding of the daily movement of the sun across the sky by conducting a set of simple, quantitative observations using a sundial they have constructed. A student work sheet accompanies the learning activity.This resource... (View More)

Students become aware of the changes in visibility and sky color due to particles suspended in the air, called aerosols. They observe, document and classify changes in visibility and sky color over several days and understand the relationship... (View More)

In this laboratory activity, students are introduced to the different particle sizes of soil and their properties. Using sieves, students remove organic materials and pebbles, and separate sand, silt, and clay. Students experiment by combining sand,... (View More)

In this field activity, students learn about the five soil-forming factors and their influence on soil properties such as moisture, temperature, color and texture. They identify factors such as slope, shade, plants and compaction, and investigate... (View More)

In this hands-on activity, students conduct bottle experiments to learn about the conditions that best facilitate the decomposition of organic material in soil. In the lab, they observe changes in the decomposition of vegetable scraps by varying the... (View More)

This chapter provides an overview of the science of studying the Earth system, with a focus on understanding the connections among phenomena that can be traced through the energy, hydrological and biogeochemical cycles, on a range of time and... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free

In this lesson, learners explore the steps in the carbon cycle and draw conclusions about the importance of the carbon cycle in the planetary temperature system. The lesson models scientific inquiry using the 5E instructional model and includes... (View More)

Keywords: Carbon cycle
Audience: Elementary school, Middle school
Materials Cost: Free

This is a lesson where learners trace the path that atoms take as they change form and move throughout the cycle of matter and compare this to the flow of energy. The lesson models scientific inquiry using the 5E instructional model and includes... (View More)

Keywords: Biology
Audience: Elementary school, Middle school
Materials Cost: Free