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Unit 1: Introduction to Scientific Methods Lesson 18: Understanding Convection Objectives: After completing the lesson, students will
be able to: Key Question: "How does heat affect the movement of water?" Overview: The lesson begins with a discussion of the results from the previous lesson (Lesson 17: "Observing Convection"). Students are introduced to the concept of convection and led to understand that the process depends on the uneven application of heat to a liquid (or a gas). Then, students are given a "real world" situation that can be modeled using the same setup used in the experiment in Lesson 17, and asked to form a hypothesis as to how convection currents will move. They then repeat the experiment in Lesson 17 to test the accuracy of their predictions. Time Required: 30-45 minutes (up to 1 class session). Materials: Procedure: see pp.13-15 in the Convection: a Current Event GEMS guide. Assessment: completed "Convection Observations" handout. Homework: complete the "Convection Observations" handouts. OUSD Science Content Standards
(State of California Science Content Standards): References: Unit 1 Introduction amnd Overview Lesson 1: Laboratory Safety and Classroom Management Lesson 2: Observation and Inference Lesson 3: Introduction to Observation Lesson 4: Comparing H2O to CO2 Lesson 7: Marge's Systematic Observation Lesson 10: Investigable Questions Lesson 11: Planning an Investigation Lesson 12: Conducting Investigations Lesson 15: Layering Salt Solutions Lesson 16: Density in Everyday Life Lesson 17: Observing Convection Lesson 18: Understanding Convection Lesson 20: Intro to Measurement |
