SYSTEMS AND MATTER

Essential Question(s)

How do you depend on systems in everyday life?

Content Learning Targets

• Matter has properties (color, hardness, odor, sound, taste, etc.) that can be observed through the senses
• Objects have properties that can be observed, described, and/or measured: length, width, volume, size, shape, mass or weight, temperature, texture, flexibility and reflectiveness of light
• Objects and/or materials can be sorted or classified according to their properties
• Matter exists in three states: solid, liquid, gas
• solids have a definite shape and volume
• liquids do not have a definite shape but have a definite volume
• gases do not hold their shape or volume
• Some properties of an object are dependent on conditions of the present surroundings in which the object exists:
• temperature (hot or cold)
• temperature can affect the state of matter of a substance
• moisture (wet or dry)
• A system is a group of objects that interact
• example: flashlight - none of the components of a flashlight have common properties. The only thing they have in common is that they interact to produce light
• Energy can vary in form, amount, and ability to move through materials and space
• energy can exist in several forms, such as mechanical, magnetic, and chemical
• energy can move from one object to another, through materials and through space. Mechanical energy can be transferred from one point in space to another point
• the amount of energy available from a source can vary
• Interaction between matter and energy can create motion (paddle boats)
• The amount of change in the motion of an object is affected by friction