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This activity promotes student understanding of some of the movements that take place when warmer water and cooler water interface, and how differences in densities, resulting from variations in temperature, set molecules of liquids and gases in... (View More)

This chapter provides a series of investigations, ranging from teacher-centered to open inquiry, that involve the formation of clouds in a model cyclone, and demonstrating how the availability of heat (indicated by temperature) affects formation and... (View More)

Learners will explore the molecular geometry and mechanics of ice. They will create a model of H2O, investigate its molecular structure and its consistent shape. Faraday's experiment is used as background. Activities include small group miming,... (View More)

This is a lesson about the phenomenon of ice and about scientific inquiry. Learners will ask scientific questions about ice, will delve into the nature of science, embark upon scientific inquiry, and will practice scientific enterprise. Activities... (View More)

Using information from their own observations, students construct a sky scene with trees and buildings as reference points on the ground and cloud types ordered by altitude in the sky. Students will describe clouds and then correlate their... (View More)

In this introduction to contrails, students explore both the origin and the three types of contrails. An indoor activity using tempera paint precedes outdoor observations and analyses of actual contrails. This is the 2nd of 3 sets of learning... (View More)

Keywords: Clouds

Working in pairs, students will create experimental conditions in terrariums in order to study what plants need to live. Variables to study include the presence or absence of soil, water, and sunlight. Students will record the growth of radish... (View More)

Each student will make predictions about the properties of various soil samples. Then they will examine several types of soils and record their observations. Next, they will learn about soil profiles and horizons by both examining a soil sample in a... (View More)

Keywords: Soil

Students will make predictions about what they think they will find in a sample of soil. They will investigate the sample and sort out the various items they find. Next they will spend time outside observing one or more sites to see what they find... (View More)

Keywords: Soil; Graphic novel

Students will learn about magnification and how a magnifying lens works. They will examine a variety of different objects, first without a magnifier and then with a magnifier, and compare what they observe. They will practice observing details of... (View More)

Keywords: Hydrosphere