#### 6.2: Physical Science

6.2.1: Matter

6.2.1.2: Substances can undergo physical changes which do not change the composition or the total mass of the substance in a closed system.

6.2.1.2.2: Describe how mass is conserved during a physical change in a closed system.

6.2.1.2.3: Use the relationship between heat and the motion and arrangement of particles in solids, liquids and gases to explain melting, freezing, condensation and evaporation.

6.2.2: Motion

6.2.2.1: The motion of an object can be described in terms of speed, direction and change of position.

6.2.2.1.1: Measure and calculate the speed of an object that is traveling in a straight line.

6.2.2.1.2: For an object traveling in a straight line, graph the object?s position as a function of time, and its speed as a function of time. Explain how these graphs describe the object?s motion.

6.2.2.2: Forces have magnitude and direction and govern the motion of objects.

6.2.2.2.2: Identify the forces acting on an object and describe how the sum of the forces affects the motion of the object.

6.2.2.2.4: Distinguish between mass and weight.

6.2.3: Energy

6.2.3.1: Waves involve the transfer of energy without the transfer of matter.

6.2.3.1.1: Describe properties of waves, including speed, wavelength, frequency and amplitude.

6.2.3.1.2: Explain how the vibration of particles in air and other materials results in the transfer of energy through sound waves.

6.2.3.1.3: Use wave properties of light to explain reflection, refraction and the color spectrum.

6.2.3.2: Energy can be transformed within a system or transferred to other systems or the environment.

6.2.3.2.1: Differentiate between kinetic and potential energy and analyze situations where kinetic energy is converted to potential energy and vice versa.

6.2.3.2.2: Trace the changes of energy forms, including thermal, electrical, chemical, mechanical or others as energy is used in devices.

6.2.3.2.3: Describe how heat energy is transferred in conduction, convection and radiation.

Correlation last revised: 5/21/2019

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