In this unit, students investigate rocks and minerals. Through their experiences, students are introduced to the following science concepts, skills, and attitudes.

• Rocks are aggregates of minerals, and they may also contain organic matter.
• Different rocks have different properties.
• The properties of rocks reflect the way they were formed and the minerals in them.
• Each mineral is composed of only one substance, and that substance is the same in all samples of the mineral.
• Minerals differ in color, texture, smell, luster, transparency, hardness, shape, and reaction to magnets.
• The properties of rocks and minerals determine how they are used.

Skills

• Using senses to observe and describe rocks and minerals.
• Recording and discussing observations of rocks and minerals.
• Sorting minerals on the basis of similarities and differences in identified properties.
• Performing and interpreting results of the following tests on minerals: streak, transparency, luster, hardness, and magnetism.
• Recording and discussing results of tests on minerals.
• Reading for more information on minerals and rocks.
• Communicating observations and test results through writing and discussion.
• Reflecting on experiences through writing and discussion.
• Applying previously learned concepts and skills to solve a problem.

• Developing an interest in investigating rocks and minerals.
• Recognizing the importance of using multiple tests to create a profile of a mineral.
• Valuing scientific information that has been collected and verified over time.