Description

In the Delta Science Collection Sink or Float, students explore why different objects sink or float. They read out about the concept of buoyancy. They find out about matter and the tiny atoms that make up everything on Earth. They learn about the physical properties of solids, liquids, and gases and discover which properties allow different solids, liquids, and gases to float. Finally, students learn how boat builders use this information to build boats of different sizes and shapes from different types of materials.

Delta Science Readers are 16-page nonfiction books for students with informative, engaging full-color photos and graphics that present key science concepts and vocabulary.

Using science material they promote reading in the specific content area. Readers present key science content and vocabulary found on most state tests and support and extend the experiences and content of hands-on activities. They also help students develop informational literacy skills while promoting scientific inquiry.

Each reader has three main sections:

1. Think About...
   Contains key information about the unit topic
2. People in Science
   Provides historical biographies, careers in science
3. Did You Know?
   Includes high-interest articles or selections