Connecting to Your World The Galileo spacecraft was placed in orbit around Jupiter to collect data about the planet and its moons. Instruments aboard Galileo analyzed the atmosphere of the moon Io. They found large amounts of sulfur and sulfur dioxide. These chemicals are usually released when volcanoes erupt on Earth. So the presence of these chemicals verified that the volcanoes on Io’s surface are active. Chemistry helped scientists to study the geology of a distant object in the solar system. In this section, you will learn about chemistry in general and ways you can use your knowledge of chemistry.

Key Concepts

• Why is the scope of chemistry so vast?

• What are five traditional areas of study in chemistry?

• How are pure and applied chemistry related?

• What are three general reasons to study chemistry?

Vocabulary

• matter

• chemistry

• organic chemistry

• inorganic chemistry

• biochemistry

• analytical chemistry

• physical chemistry

• pure chemistry

• applied chemistry

• technology

Reading Strategy

Relating Text And Visuals As you read, look closely at Figure 1.2. Explain how this illustration helps you to understand the traditional areas of study in chemistry.

Guided Reading and Study Worksheet