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Mr. Ghist's Science Page 

Platte Canyon High School
Bailey, Colorado

Science Standards

SCIENCE STANDARDS
2

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Students know and understand common properties, forms, and changes in matter and energy

 BENCHMARKS

2.1  Students know that matter has characteristic properties, which are related to its composition and structure

  • examining, describing, measuring, classifying, and predicting common properties of substances (for example, electrical charge, chemical reactivity, acidity, electrical conductivity, radioactivity, periodicity)

  • describing and explaining properties and composition of samples of matter using models (for example, atomic and molecular structure, the periodic table)

  • separating substances based on their chemical and physical properties (for example, color, solubility, chemical reactivity, melting point, boiling point)

  • using word and chemical equations to relate observed changes in matter to its composition and structure

2.2  Students know that energy appears in different forms, and can move (be transferred) and change (be transformed).

  • identifying, measuring, calculating, and analyzing quantitative relationships involved with energy forms (for example, heat transfer in a system involving mass, specific heat, and change in temperature of matter)

  • identifying, measuring, calculating, and analyzing qualitative and quantitative relationships associated with energy transfer or energy transformation (for example, changes in temperature, velocity, potential energy, kinetic energy, conduction, convection, radiation, voltage, current).

2.3  Students understand that interactions can produce changes in a system, although the total quantities of matter and energy remain unchanged.

  • identifying, describing, and explaining physical and chemical changes involving the conservation of matter and energy (for example, oscillating pendulum/spring, chemical reactions, nuclear reactions)

  • observing, measuring, and calculating quantities to demonstrate conservation of matter and energy in chemical changes (for example, acid-base, precipitation, oxidation-reduction reactions) and physical interactions of matter (for example, force, work, power)

  • describing and predicting chemical changes (for example, combustion, simple chemical reactions) and physical interactions of matter (for example, velocity, force, work, power), using word or symbolic equations

  • describing and explaining physical interactions of matter using conceptual models (for example, conservation laws of matter and energy particle model for gaseous behavior)

 

GRADE LEVEL EXPECTATIONS

Guiding questions:

How do we describe the physical world around us?

What is the world around us made of and how do we know?

What is energy?

How do electricity, magnetism, sound, and light interact with matter?

 Expectations:

demonstrate how the Periodic Table can be used to predict the properties of elements and reflects trends in these properties as they relate to the physical world

describe the molecular, atomic, and ionic makeup of a variety of substances, use appropriate formula to represent these substances and investigate common chemical reactions

use bonding diagrams (ionic, covalent) to predict the outcome of a chemical reaction

use word or symbol equations to predict chemical and physical interactions (neutralization, combustion, Newton's Second Law)

analyze and discuss the effect of solute and solvent concentration on the rate of dissolving, acidity, and viscosity of a solution

describe the components of the modern model of the atom and how they are related

design an electrical circuit and apply Ohm's Law to evaluate the components of the  circuit (voltage and resistance affect the flow of electrical current in a circuit)

explain the Doppler effect and identify some of its applications (energy can be transferred as waves; the frequency and wavelengths of the waves are affected by the relative motion of the source and receiver)

describe how energy is involved in chemical, physical and nuclear changes

investigate the relationship between heat and work (e.g. how the interior of a refrigerator is cooled)

investigate phase changes that are induced by adding/subtracting heat energy and explain using the particle model, how the interaction of atoms or molecules during a change of state affects the properties of the substance

give an example of an object moving in a circular path and find and compare its speed, period, frequency, acceleration and centripetal force with other masses and report these findings

collect and graph data and explain that acceleration is a change in velocity or direction of travel

calculate and report the acceleration and motion of several different objects when released from the same position

observe, interpret, and explain the behavior of a compass needle near a permanent magnet

formulate a model of radioactive decay

demonstrate that for every action there is an equal and opposite reaction (e.g. identifying places on a roller coaster ride where one feels lighter or heavier)

observe, diagram, and label the parts of transverse waves having different frequencies and amplitudes

use a wave model of light to predict optical phenomena

observe and measure the effect of friction on moving objects

know that the laws of conservation of energy and momentum provide a way to predict and describe the movement of objects

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