7th Grade Science Guide

7.1: Field Forces 3 Dimensions & Progressions

Unit 2

STANDARD ●​ 7.1.5 Engage in argument from evidence to support the claim that gravitational interactions within a system are attractive and dependent upon the masses of interacting objects . Examples of evidence for arguments could include mathematical data generated from various simulations. (MS-PS2-4)

CONCEPTS

SKILLS

●​ Gravitational interaction in a system ●​ Attraction depends on masses of interacting objects

●​ Engage in Argument ●​ Support a claim

LEARNING PROGRESSIONS

●​ Objects all have mass ●​ Objects in the solar system have magnitude and direction ●​ Gravity acts on all objects and is an attractive force

●​ Systems of objects can be modeled as a set of masses interacting via gravitational force ●​ In systems of objects, larger masses experience and exert proportionally larger gravitational forces

VOCABULARY ●​ Gravity

●​ Orbit ●​ Magnitude ●​ Galaxy

●​ Solar System ●​ Satellite ●​ Attraction

●​ Force ●​ Mass ●​ Inertia

POSSIBLE PHENOMENA ●​ A year on Mars is twice as long as a year on Earth. ●​ According to NASA, it takes 1,607185 pounds of fuel to launch a space shuttle from Earth. END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ●​ I can use evidence to support the claim that gravitational forces are dependent upon the mass of the objects. ○​ Nouns

DIFFERENTIATION IN ACTION

●​ Use the Gravitational Force Gizmo help students see how mass of objects changes gravitational force. Students should make a model of gravitational force. ●​ Students could create a model and explain it, similar to the

Skill Building