6th Grade Science Guide

6.1.2/3: Solar System 3 Dimensions & Progressions

Unit 2

STANDARD 6.1.2

6.1.2 Develop and use a model to describe the role of gravity and inertia in orbital motions of objects in our solar system. MS-ESS1-1

CONCEPTS

SKILLS

● Role of Gravity & Intertia ● Orbital Motion of Objects

● Develop a Model

LEARNING PROGRESSIONS

● Gravity is a force that keeps smaller/less massive objects in orbit around larger/more massive objects ● Gravitational force of the sun causes planets and other bodies to orbit around it ● Inertia in the solar system is the tendency for planets to resist changes in their direction and speed of movement ● Gravity and Inertia working together are what keep the planets of the solar system in stable orbits ● Relationships and interactions between objects increases with mass increases ● Relationships and interactions between objects decreases as the distance increases VOCABULARY ● Celestial Object ● Planets ● Distance ● Scale ● Orbit ● Orbital Motion ● Ratio ● Gravity ● Inertia ● Earth orbits around the Sun and the Moon orbits around Earth. ● Celestial objects stay in orbital patterns around the sun. ● Saturn has over 80 moons that orbit it. END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ● I can use a model to describe the relationships and interactions between components of the solar systems including gravity and orbital motion. ○ Language Supports: ■ verbs (ie. have, be, belong to) ■ connectors to show relationships (ie. as a result, therefore) ■ If/then clauses (ie. Gravitational forces from planets cause smaller objects to ____. Gravitational force of the sun causes _______.) POSSIBLE PHENOMENA

DIFFERENTIATION IN ACTION