2.3 The student will investigate and understand basic properties of solids, liquids, and gases. Key concepts include a) identification of distinguishing characteristics of solids, liquids, and b) measurement of the mass and volume of solids and liquids; and c) changes in phases of matter with the addition or removal of energy. Understanding the Standard Essential Knowledge, Skills, and Processes (Background Information for Instructor Use Only) All substances are made of matter. In order to meet this standard, it is expected that students will Matter is anything that has mass and takes up space. classify materials as to whether they are liquids, solids, or Solids have a defined shape and volume. describe and identify examples of condensation, evaporation, melting, and freezing of water. Liquids have a definite volume and take the of the container. measure the mass of solids and the volume of liquids in metric and Gases will completely fill any closed container (take the shape of its standard English units. container) and assume the volume of its container. (e.g., Helium gas put into a balloon takes the shape of the balloon because the balloon defines examine and describe the transformation of matter from one phase to its shape.) another, i.e., solid water (ice) to liquid (water) to gas (water vapor). Mass is a measure of the amount of matter. conduct an investigation to observe the condensation of water. Weight is the measure of the gravitational pull on an object. design and conduct an investigation to determine basic factors that affect the evaporation of water. Volume is the measure of the amount of space occupied by matter. identify the phases of water and the uses of water in its various phases Matter most commonly occurs in phases: solids, liquids, and gases. in the home and at school. Matter can change from one phase to another. When matter changes from one phase to another, these changes are referred to as physical changes. Changes from solid to liquid to gas require the addition of energy.
2.3 The student will investigate and understand basic properties of solids, liquids, and gases. Key concepts include a) identification of distinguishing characteristics of solids, liquids, and b) measurement of the mass and volume of solids and liquids; and c) changes in phases of matter with the addition or removal of energy. Understanding the Standard (Background Information for Instructor Use Only) Essential Knowledge, Skills, and Processes All substances are made of matter. Matter is anything that has mass and takes up space. Solids have a defined shape and volume. Liquids have a definite volume and take the of the container. Gases will completely fill any closed container (take the shape of its container) and assume the volume of its container. (e.g., Helium gas put into a balloon takes the shape of the balloon because the balloon defines its shape.) Mass is a measure of the amount of matter. Weight is the measure of the gravitational pull on an object. Volume is the measure of the amount of space occupied by matter. Matter most commonly occurs in phases: solids, liquids, and gases. Matter can change from one phase to another. When matter changes from one phase to another, these changes are referred to as physical changes. Changes from solid to liquid to gas require the addition of energy. In order to meet this standard, it is expected that students will classify materials as to whether they are liquids, solids, or describe and identify examples of condensation, evaporation, melting, and freezing of water. measure the mass of solids and the volume of liquids in metric and standard English units. examine and describe the transformation of matter from one phase to another, i.e., solid water (ice) to liquid (water) to gas (water vapor). conduct an investigation to observe the condensation of water. design and conduct an investigation to determine basic factors that affect the evaporation of water. identify the phases of water and the uses of water in its various phases in the home and at school.
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