7th Grade Science Guide
7.1: Field Forces 3 Dimensions & Progressions
Unit 2
STANDARD 7.1.3 ● Construct a model using observational evidence to describe the nature of felds existing between objects that exert forces on each other even though the objects are not in contact . Emphasize the cause and effect relationship between properties of objects (such as magnets or electrically charged objects) and the forces they exert.
CONCEPTS
SKILLS
● Nature of felds existing between objects ● Magnets ● Electricity
● Construct a model ● Observe evidence ● Describe
LEARNING PROGRESSIONS
● Electric and magnetic forces can be attractive or repulsive ● Size of forces depend on the magnitude of the charges, currents, or distance between interacting objects ● Forces that act at a distance can be explained by felds that extend through space ● Forces can be mapped by their effect on test objects
VOCABULARY
● Negatively charged ● Positively charged ● Neutral charged
● Electrical feld ● Magnetic feld
● Static electricity ● Attraction ● Repulsion
POSSIBLE PHENOMENA ● At the park, you see a child coming down the slide with hair sticking straight up. ● When a piece of Tefon Tape is frst pulled off the roll it is diffcult to let go of the tape and/or drop into a small cup. ● A magnet falls more slowly through a copper pipe than a plastic pipe. ● A magnet falls more slowly through a copper pipe than a plastic pipe. END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ● I can create a model that shows forces exist between objects even when they are not touching. ○ Language Supports: ■ Connectors to link clauses (as a result of, therefore, and so we see that) ■ labeling/describing model (our model shows, in our model we, you can see that)
DIFFERENTIATION IN ACTION
● Create a magnetic feld viewer like in the video using these containers and iron flings and allow students to explore the
Skill Building
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