1 / 10

Chapter Menu

Introduction to Chemistry. Topic 1.1 What is Chemistry? Topic 1.2 Matter Topic 1.3 Scientific Methods Section 1.4 Scientific Research. Click a hyperlink or folder tab to view the corresponding slides. Exit. Chapter Menu. Section 1.1 Matter and Chemistry. Chemistry Matter Substance

carol-matthews
Télécharger la présentation

Chapter Menu

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. Introduction to Chemistry Topic 1.1What is Chemistry? Topic 1.2Matter Topic 1.3Scientific Methods Section 1.4Scientific Research Click a hyperlink or folder tab to view the corresponding slides. Exit Chapter Menu

  2. Section 1.1 Matter and Chemistry Chemistry Matter Substance Macroscopic Microscopic Submicroscopic mass weight Model Define substance. Explainwhat Chemistry is. Compare and contrast mass and weight. Explain why chemists are interested in a submicroscopic description of matter. Chemistry is the study of everything around us. Section 1-1

  3. Why Study Chemistry? All the “stuff” in the universe is made from building blocks that have been here since the beginning of the universe. • These building blocks and everything made from them are called matter. • Those original pieces of matter are still here. • Chemistry is the study of matter and the changes it undergoes. • Everything around you involves Chemistry Section 1-1

  4. What is a substance? • A substance is another name for a chemical • It is matter that has a definite composition. • We will usually talk about PURE substances. • 2 types of Pure substances– • elements • compounds • Mixtures are not pure substances Section 1-1

  5. Where do we find Chemical reactions? • EVERYWHERE! • Most changes around you are the result of chemical reactions. • EVERYTHING that happens in your body is a chemical reaction or an energy change. • Later we will learn how to tell if something is a chemical reaction Section 1-1

  6. Matter and its Characteristics Matter has many different forms. • Mass is a measurement that reflects the amount of matter. • Depends on the number of particles • Weightis a measure of mass and the force of gravity on an object. • Weight can change from place to place, but mass is constant. Section 1-2

  7. Matter and its Characteristics (cont.) Much of matter and its behavior is macroscopic, meaning that it can be observed without a microscope. Microscopicobservations requires a light microscope – like looking at cells The structure, composition, and behavior of all matter can also be described on the submicroscopic (atomic) level. An understanding of the SUBmicroscopic level can help explain and predict behavior of matter Section 1-2

  8. Matter and its Characteristics (cont.) Chemistry explains events on the atomic (submicroscopic) level that cause macroscopic observations. • A model is a verbal, visual, or mathematical explanation of experimental data. • Models are used to explain things that cannot be observed directly • Since we can’t see things on a sub-microscopic level, we need models. • Models often change as our understanding changes. Section 1-2

  9. This slide is intentionally blank. End of Custom Shows

More Related