The purpose of this investigation is to understand the change that takes place when water condenses from a gas to a liquid, and how a change in pressure affects this transformation. Materials needed for the experiment include a large (2L) soda... (View More) bottle, a squeeze bottle with a plastic hose, parking pens, construction paper, wooden matches, and tap water. The resource includes background information, a pre-activity exploration for students, teaching tips and questions to guide student discussion. This is the chapter 12 of Meteorology: An Educator's Resource for Inquiry-Based Learning for Grades 5-9. The guide includes a discussion of learning science, the use of inquiry in the classroom, instructions for making simple weather instruments, and more than 20 weather investigations ranging from teacher-centered to guided and open inquiry investigations. (View Less)

In this hands-on activity, students create a model soil profile in a two-liter beverage bottle, time the movement of water through different soils and observe the amount of water held in these soils. They observe the filtering ability of soils by... (View More) noting the clarity of the water before and after it passes through the soil. The activity is supported by a student data sheet. This is a learning activity associated with the GLOBE soil investigations and is supported by the Soils chapter of the GLOBE Teacher's Guide. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program. (View Less)