Download fourth nine weeks

Fourth nine weeks unit plan
8th grade science
Layman and Hedrick
Sound and Light
Standards:
Waves
1. Understand how light and radio waves carry energy through vacuum or matter by:
• straight-line travel unless an object is encountered
• reflection by a mirror, refraction by a lens, absorption by a dark object
• separation of white light into different wavelengths by prisms
• visibility of objects due to light emission or scattering.
2 Understand that vibrations of matter (e.g., sound, earthquakes, water waves) carry wave
energy, including:
• sound transmission through solids, liquids, and gases
• relationship of pitch and loudness of sound to rate and distance (amplitude) of vibration
Activities
Introduce vocabulary (light, reflection, refraction, absorption, transparent,
translucent, opaque, convex, concave, rods, cones, lens, focal point, optical
illusions, sound, sound wave, Doppler effect, vibration, medium, wavelength,
frequency, pitch, amplitude, interference, resonance, echo, reverberation, echo
location, sonar)
pre-assessment to determine student’s readiness to learn. Agree/disagree
statements
Chapter 13, lesson 1 and Chapter 14, lesson 1
Students will demonstrate their understanding of sound and light waves through
various lab and center stations, including but not limited to practicing with
mirrors, prisms, tuning forks, optical illusions, lights, color, musical instruments,
common household items to demonstrate sound and light qualities.
Post assessment – quiz
Electricity and Magnetism
Standards:
1. Know that electrical energy is the flow of electrons through electrical conductors that connect
sources of electrical energy to points of
use, including:
• electrical current paths through parallel and series circuits
• production of electricity by fossil-fueled and nuclear power plants, wind generators, geothermal
plants, and solar cells
• use of electricity by appliances and equipment (e.g., calculators, hair dryers, light bulbs,
motors).
2. Know that electric charge produces electrical fields and magnets produce magnetic fields.
* Know how a moving magnetic field can produce an electric current (generator) and how an
electric current can produce a magnetic field
(electromagnet).
*know that Earth has a magnetic field.
Activities:
Introduction of vocabulary: (electrically charged, electric discharge, insulator, conductor,
force, field, current, circuit, generator, series vs parallel circuits, ac vs. dc, voltage, amps,
electromagnet, poles)
Chapters 15
Students will complete several lab activities and centers demonstrating their knowledge of
electricity and magnets; including, but not limited to using different types/shapes of magnets,
creating series and parallel circuits, testing conductivity and magnetism of different objects,
create and electromagnet and a temporary magnet. Students will determine how we use
electricity and magnets in day to day life.
Post assessment - quiz