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Science (2015) |
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1 ) Analyze patterns within the periodic table to construct models (e.g.,
molecular-level models, including drawings; computer representations) that
illustrate the structure, composition, and characteristics of atoms and molecules.
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
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8 |
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2 ) Plan and carry out investigations to generate evidence supporting the claim
that one pure substance can be distinguished from another based on
characteristic properties.
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
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3 ) Construct explanations based on evidence from investigations to
differentiate among compounds, mixtures, and solutions.
a. Collect and analyze information to illustrate how synthetic materials
(e.g., medicine, food additives, alternative fuels, plastics) are derived from
natural resources and how they impact society.
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
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14 |
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4 ) Design and conduct an experiment to determine changes in particle motion, temperature, and
state of a pure substance when thermal energy is added to or removed from a system.
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
Physical Science |
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5 ) Observe and analyze characteristic properties of substances (e.g., odor,
density, solubility, flammability, melting point, boiling point) before and
after the substances combine to determine if a chemical reaction has occurred.
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
Physical Science |
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6 ) Create a model, diagram, or digital simulation to describe conservation of mass in a chemical reaction and explain the resulting differences between products and reactants.
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NAEP Framework
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Science (2015) |
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7 ) Design, construct, and test a device (e.g., glow stick, hand warmer, hot or
cold pack, thermal wrap) that either releases or absorbs thermal energy by
chemical reactions (e.g., dissolving ammonium chloride or calcium chloride in
water) and modify the device as needed based on criteria (e.g.,
amount/concentration, time, temperature).*
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Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
Physical Science |
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8 ) Use Newton's first law to demonstrate and explain that an object is either at rest or moves at a constant velocity unless acted upon by an external force (e.g., model car on a table remaining at rest until pushed).
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
Physical Science |
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3 |
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9 ) Use Newton's second law to demonstrate and explain how changes in an object's motion depend on the sum of the external forces on the object and the mass of the object (e.g., billiard balls moving when hit with a cue stick).
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
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2 |
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10 ) Use Newton's third law to design a model to demonstrate and explain the
resulting motion of two colliding objects (e.g., two cars bumping into each
other, a hammer hitting a nail).*
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
Physical Science |
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11 ) Plan and carry out investigations to evaluate how various factors (e.g., electric force produced between two charged objects at various positions; magnetic force produced by an electromagnet with varying number of wire turns, varying number or size of dry cells, and varying size of iron core) affect the strength of electric and magnetic forces.
Unpacked Content
NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
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2 |
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12 ) Construct an argument from evidence explaining that fields exist between
objects exerting forces on each other (e.g., interactions of magnets,
electrically charged strips of tape, electrically charged pith balls,
gravitational pull of the moon creating tides) even when the objects are not in
contact.
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NAEP Framework
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Science (2015) |
Grade(s): 8 |
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13 ) Create and analyze graphical displays of data to illustrate the
relationships of kinetic energy to the mass and speed of an object (e.g., riding
a bicycle at different speeds, hitting a table tennis ball versus a golf ball,
rolling similar toy cars with different masses down an incline).
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NAEP Framework
Alabama Alternate Achievement Standards
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Science (2015) |
Grade(s): 8 |
Physical Science |
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4 |
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14 ) Use models to construct an explanation of how a system of objects may contain varying types and amounts of potential energy (e.g., observing the movement of a roller coaster cart at various inclines, changing the tension in a rubber band, varying the number of batteries connected in a series, observing a balloon with static electrical charge being brought closer to a classmate's hair).
Unpacked Content
NAEP Framework
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Science (2015) |
Grade(s): 8 |
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15 ) Analyze and interpret data from experiments to determine how various
factors affect energy transfer as measured by temperature (e.g., comparing final
water temperatures after different masses of ice melt in the same volume of
water with the same initial temperature, observing the temperature change of
samples of different materials with the same mass and the same material with
different masses when adding a specific amount of energy).
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16 ) Apply the law of conservation of energy to develop arguments supporting
the claim that when the kinetic energy of an object changes, energy is
transferred to or from the object (e.g., bowling ball hitting pins, brakes being
applied to a car).
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Science (2015) |
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17 ) Create and manipulate a model of a simple wave to predict and describe the
relationships between wave properties (e.g., frequency, amplitude, wavelength)
and energy.
a. Analyze and interpret data to illustrate an electromagnetic spectrum.
Unpacked Content
Scientific And Engineering Practices: Developing and Using Models; Analyzing and Interpreting Data Crosscutting Concepts: Patterns; Systems and System Models Disciplinary Core Idea: Waves and Their Applications in Technologies for Information Transfer Evidence Of Student Attainment: Students:
- Create a model of a simple wave to predict and describe the relationships between wave properties and energy.
- Manipulate a model of a simple wave to predict and describe the relationships between wave properties and energy.
- Analyze data to illustrate an electromagnetic spectrum.
- Interpret data to illustrate an electromagnetic spectrum.
Teacher Vocabulary: - Manipulate
- Model
- Wave
- Simple wave
- Predict
- Wave properties (e.g., frequency, amplitude, wavelength)
- Energy
- Analyze
- Interpret
- Illustrate
- Electromagnetic spectrum (radio waves, visible light, microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
- Electromagnetic radiation
- Photons
- Hertz
- Volts
- Joules
- Displacement
Knowledge: Students know:
- Waves represent repeating quantities.
- A simple wave has a repeating pattern with a specific wavelength, frequency, and amplitude.
- The frequency of a wave is the number of waves passing a point in a certain time. The unit of frequency is the hertz (Hz) and one hertz is equal to one wave per second.
- Amplitude is the maximum displacement of the wave pattern from equilibrium.
- Wavelength is the distance between consecutive wave crests or troughs.
- The electromagnetic spectrum is the range of all types of electromagnetic radiation. Radiation is energy that travels and spreads out as it travels.
- The types of electromagnetic radiation that make up the electromagnetic spectrum are radio waves, visible light, microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
- Electromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of light. Each photon contains a certain amount of energy. The different types of radiation are defined by the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays.
- Electromagnetic radiation can be expressed in terms of energy, wavelength, or frequency. Frequency is measured in cycles per second, or Hertz. Wavelength is measured in meters. Energy is measured in electron volts or Joules.
Skills: Students are able to:
- Develop a model of a simple wave and identify the relevant components.
- Describe the relationships between components of the model.
- Use patterns observed from their model to provide causal accounts for events and make predictions for events by constructing explanations.
- Organize given data to allow for analysis and interpretation of the electromagnetic spectrum.
- Analyze the data to identify possible causal relationships between waves and their positions in the electromagnetic spectrum.
- Interpret patterns observed from the data to provide causal accounts for events and make predictions for events by constructing explanations.
Understanding: Students understand that:
- Relationships exist between wave properties (e.g., frequency, amplitude, wavelength) and energy.
- These relationships can be predicted and described with models of simple waves.*The electromagnetic spectrum is the range of all types of electromagnetic radiation.
- Electromagnetic radiation can be expressed in terms of energy, wavelength, or frequency and the types of radiation are arranged in the spectrum based on the measure of their energy, wavelength, and/or frequency.
- The types of electromagnetic radiation that make up the electromagnetic spectrum are radio waves, visible light, microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
AMSTI Resources: AMSTI Module: Electricity, Waves, and Information Transfer
NAEP Framework
NAEP Statement:: P8.10a: Energy is transferred from place to place.
NAEP Statement:: P8.10b: Light energy from the Sun travels through space to Earth (radiation).
NAEP Statement:: P8.10c: Thermal energy travels from a flame through the metal of a cooking pan to the water in the pan (conduction).
NAEP Statement:: P8.10d: Air warmed by a fireplace moves around a room (convection).
NAEP Statement:: P8.10e: Waves (including sound and seismic waves, waves on water, and light waves) have energy and transfer energy when they interact with matter.
Alabama Alternate Achievement Standards
AAS Standard: SCI.AAS.8.17- Use a model to investigate ways to change the properties of a simple wave (frequency, amplitude, wavelength).
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Science (2015) |
Grade(s): 8 |
Physical Science |
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5 |
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18 ) Use models to demonstrate how light and sound waves differ in how they are
absorbed, reflected, and transmitted through different types of media.
Unpacked Content
Scientific And Engineering Practices: Developing and Using Models Crosscutting Concepts: Structure and Function Disciplinary Core Idea: Waves and Their Applications in Technologies for Information Transfer Evidence Of Student Attainment: Students:
- Use models to demonstrate how light waves differ in how they are absorbed, reflected, and transmitted through different types of media.
- Use models to demonstrate how sound waves differ in how they are absorbed, reflected, and transmitted through different types of media.
Teacher Vocabulary: - Light
- Sound
- Absorption
- Reflection
- Transmission
- Media
- Transparent
- Translucent
- Opaque
- Frequency
- Amplitude
- Wavelength
- Electromagnetic waves
Knowledge: Students know:
- A medium is not required to transmit electromagnetic waves.
- A sound wave, a type of mechanical wave, needs a medium through which it is transmitted.
- When a sound wave strikes an object, it is absorbed, reflected, or transmitted depending on the object's material.
- When a light wave shines on an object, it is absorbed, reflected, or transmitted depending on the object's material and the frequency of the light.
- The path that light travels can be traced as straight lines, except at surfaces between different transparent materials (e.g., air and water, air and glass) where the path of light bends.
- The absorption, reflection, and transmission of light and sound waves can be identified by observing relevant characteristics of the wave, such as frequency, amplitude, and wavelength.
- Materials with certain properties are well-suited for particular functions (e.g., lenses and mirrors, sound absorbers in concert halls, colored light filters, sound barriers next to highways).
Skills: Students are able to:
- Develop models of light and sound waves and identify the relevant components.
- Describe the relationships between components of the model.
- Use observations from the model to provide causal accounts for events and make predictions for events by constructing explanations.
Understanding: Students understand that:
- Light and sound waves differ in how they interact with different types of media.
- The absorption, reflection, and transmission of light and sound waves depends on the type of media through which they are transmitted.
- Materials with certain properties are well-suited for particular functions (e.g., lenses and mirrors, sound absorbers in concert halls, colored light filters, sound barriers next to highways).
AMSTI Resources: AMSTI Module: Electricity, Waves, and Information Transfer
Alabama Alternate Achievement Standards
AAS Standard: SCI.AAS.8.18- Investigate and describe how light and sound waves travel through a variety of media.
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Science (2015) |
Grade(s): 8 |
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19 ) Integrate qualitative information to explain that common communication
devices (e.g., cellular telephones, radios, remote controls, Wi-Fi components,
global positioning systems [GPS], wireless technology components) use
electromagnetic waves to encode and transmit information.
Unpacked Content
Scientific And Engineering Practices: Obtaining, Evaluating, and Communicating Information Crosscutting Concepts: Structure and Function Disciplinary Core Idea: Waves and Their Applications in Technologies for Information Transfer Evidence Of Student Attainment: Students:
- Use qualitative information to explain how communication devices use electromagnetic waves to encode information.
- Use qualitative information to explain how communication devices use electromagnetic waves to transmit information.
Teacher Vocabulary: - Qualitative
- Information
- Communication devices (e.g., cellular phone, Global Positioning System (GPS), remote control, Wi-Fi, etc.)
- Electromagnetic waves
- Energy
- Energy wave
- Electric field
- Magnet
- Magnetic field
- Mechanical wave
- Vacuum
- Frequency
- Wavelength
- Crest
- Medium
- Amplitude
- Displacement
- Rest position
- Encode
- Transmit
Knowledge: Students know:
- Electromagnetic waves are a form of energy waves that have both an electric and magnetic field. Electromagnetic waves are different from mechanical waves in that they can transmit energy and travel through a vacuum.
- The different types of electromagnetic waves have different uses and functions in our everyday lives.
- Electromagnetic waves differ from each other in wavelength, frequency, and energy, and are classified accordingly. Wavelength is the distance between one wave crest to the next.
- Frequency refers to how often the particles of the medium vibrate when a wave passes through the medium
- The amount of energy carried by a wave is related to the amplitude of the wave. A high energy wave is characterized by a high amplitude; a low energy wave is characterized by a low amplitude. The amplitude of a wave refers to the maximum amount of displacement of a particle on the medium from its rest position.
- Electromagnetic waves can be used to encode information.
- Electromagnetic waves can be used to transmit information.
- Examples of common communication devices may include cellular telephones, radios, remote controls, Wi-Fi components, global positioning systems (GPS), and wireless technology components.
Skills: Students are able to:
- Gather evidence sufficient to explain a phenomenon that includes the idea that using waves to carry digital signals is a more reliable way to encode and transmit information than using waves to carry analog signals.
- Combine the relevant information (from multiple sources) to articulate the explanation.
Understanding: Students understand that:
- Common communication devices use electromagnetic waves to encode and transmit information.
AMSTI Resources: AMSTI Module: Electricity, Waves, and Information Transfer
Alabama Alternate Achievement Standards
AAS Standard: SCI.AAS.8.19- Recognize that common communication devices use electromagnetic waves to transmit information, and that these electromagnetic waves are invisible to the human eye.
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