1 / 10

Chapter 13 Characteristics of matter Lesson 1 – how can materials be identified?

Chapter 13 Characteristics of matter Lesson 1 – how can materials be identified?. Vocabulary. Boiling point – temperature at which a substance changes from a liquid to a gas Chemical property – ability of a material to change its chemical makeup Conductivity – ability to carry energy

cambree
Download Presentation

Chapter 13 Characteristics of matter Lesson 1 – how can materials be identified?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 13Characteristics of matterLesson 1 – how can materials be identified?

  2. Vocabulary • Boiling point – temperature at which a substance changes from a liquid to a gas • Chemical property – ability of a material to change its chemical makeup • Conductivity – ability to carry energy • Density – mass per unit volume of a substance. • Melting point – temperature at which a substance changes from a solid to a liquid

  3. Vocabulary • Physical property – characteristic that can be measured or detected by the senses • Solubility – measure of how much of one substance can dissolve in another substance

  4. Properties • Physical and chemical properties are characteristics used to describe, identify, and classify matter. • Properties can be used to identify pure substances. • *Physical properties include state, size, and color • *A chemical property is the ability of a material to react, burn, or change to form a new material.

  5. Turn to… • Page E43 • Compare a sheet of paper and a sheet of aluminum foil. • What are the physical properties? (Think about the five senses.) • What are the chemical properties? (Does the sheet change?)

  6. Mass, Volume, and Density • Mass is the amount of matter in an object • Volume is the amount of space an object takes up. • Density is the mass per unit volume of matter.

  7. Melting Point and Boiling Point • Three states of matter are Solid, Liquid and Gas • When a substance changes state, it will be at its melting point or boiling point • When enough energy is added to a solid, it melts to form a liquid. - melting point • Melting point of water is 0°C (or 32°F) The melting point of gold is about 1,060°C (1,940°F) • When enough energy is added to a liquid, it changes into a gas – boiling point • The boiling point of water is 100°C (212°F), while the boiling point of rubbing alcohol is 108°C (226°F)

  8. Solubility and Conductivity • The physical property of solubility is a measure of how much of one substance can dissolve another substance. • The physical property of conductivity is the ability of energy to travel through a material.

  9. Solubility and Conductivity • The physical property of conductivity is the ability of energy to travel through a material • Electrical conductivity refers to carrying electricity. Thermal conductivity refers to carrying heat. • Good conductors: copper, gold, silver, aluminum • Low conductors: rubber, plastic – good to insulate conductors so you don’t get shocked

  10. Lesson Wrap-Up • A physical property is a characteristic that can be measured or detected by the senses. • To find the volume of an object with an irregular shape, sink it in water • Melting point is the temperature at which a solid changes to a liquid. Boiling point is the temperature at which a liquid changes to a gas.

More Related