Matter is anything that has mass and takes up space. It is all around us and can exist in different states - solid, liquid, and gas.
Solid: Matter with a fixed volume and shape. Particles are tightly packed and vibrate in place.
Liquid: Matter with a definite volume but no fixed shape. Particles are close together but can move past each other.
Gas: Matter with no definite shape or volume. Particles are far apart and move freely.
Matter can be described by its properties, such as color, shape, size, texture, and mass.
Matter can undergo physical changes, such as melting, freezing, evaporating, and condensing. It can also undergo chemical changes, such as burning and rusting.
All matter is made up of tiny particles called atoms and molecules. These particles are constantly in motion.
Energy can cause changes in matter, such as heating or cooling, and can also be released during chemical reactions.
The student demonstrates an understanding of the structure and properties of matter by identifying and comparing the characteristics of gases, liquids, and solids.
Concepts of Physical Science: A student should understand and be able to apply the concepts, models, theories, universal principles, and facts that explain the physical world. A student who meets the content standard should:
Develop an understanding of the interactions between matter and energy, including physical, chemical, and nuclear changes, and the effects of these interactions on physical systems.