Matter

• What is the title of the study material?

  Matter and Its Properties
• What is the definition of a systematized body of knowledge?

  It is based on facts and experimentation.
• What is the study of human society and social life called?

  Sociology
• What does the study of mathematics explain?

  It explains certain phenomena or situations using mathematical models.
• What is the study of everything found in nature called?


  Natural Science
• What does the study of physical science deal with?

  It deals with the nonliving component of nature.
• What does the study of biological science focus on?

  It deals with the living component of nature.
• What is the study of matter called?

  Chemistry
• What is the application of science referred to as?

  Technology
• What are the two characteristics of matter?

  Has mass and occupies space.
• How is matter described on the macroscopic level?

  Matter is continuous.
• How is matter described on the microscopic level?

  Matter is discontinuous and composed of atoms.
• What are the three familiar states of matter?

  • Solid
  • Liquid
  • Gas
• What are the properties of gas, liquid, and solid states of matter?

  • Gas: Particles are relatively far apart; volume and shape are indefinite.
  • Liquid: Particles are adhering and mobile; volume is definite, shape is indefinite.
  • Solid: Particles are closely packed; volume and shape are definite.
• What is the change from solid to liquid called?

  Melting
• What is the change from liquid to solid called?


  Freezing
• What is the change from liquid to gas called?

  Evaporation
• What is the change from gas to liquid called?

  Condensation
• What is the change from gas to solid called?

  Deposition
• What is the change from solid to gas called?

  Sublimation
• What is the change from gas to plasma called?

  Ionization
• What is the change from plasma to gas called?

  Deionization
• What is a physical change?

  A change that does not involve a transformation in identity and only involves change in physical properties.
• What is a chemical change?

  A change that involves the formation of a new substance and is a chemical reaction.
• What are indicators of a chemical change?

  Production of new substance, evolution of gas, formation of precipitates, change in temperature, production of light, change in color or odor.
• What is the classification of matter based on composition?

  Pure substances and mixtures.
• What are pure substances?


  Substances with constant chemical composition that cannot be separated by physical means.
• How are elements classified?

  Elements are classified as metals, nonmetals, and metalloids.
• How many elements are in the periodic table?

  118 elements
• What are the two elements that are liquid at room temperature?

  Bromine and Mercury
• What are the most abundant elements in the Earth's crust?

  Oxygen, Silicon, and Aluminum
• What are the most abundant elements in the human body?

  Oxygen, Carbon, Hydrogen, Nitrogen, and Calcium
• What are compounds?

  Substances made up of two or more elements that can be decomposed chemically into simpler substances.
• How are ionic compounds formed?

  Ionic compounds form ionic bonds between positively and negatively charged ions.
• What are covalent compounds also known as?

  Molecules
• What is a homogeneous mixture?


  A mixture that has only one phase and a uniform appearance throughout the sample.
• What is a heterogeneous mixture?

  A mixture composed of two or more phases that are combined physically.
• What are suspensions?


  Mixtures containing particles that settle out if left undisturbed.
• What are colloids?


  Mixtures made up of tiny particles dispersed in a medium that remain uniformly scattered.
• What is the classification of matter and its definitions?

  • Matter: Anything that has mass and occupies space.
  • Pure Substance: Constant chemical composition, cannot be separated by physical means.
  • Mixture: Physical combination of two or more substances.