Diamagnetic - Science Sixth Grade

Diamagnetic Materials

Diamagnetic materials are substances that have a weak, negative susceptibility to magnetic fields. When exposed to a magnetic field, diamagnetic materials create a weak opposing magnetic field of their own. This causes the material to be repelled by the magnetic field, leading to a slight decrease in the overall magnetic field within the material.

Properties of Diamagnetic Materials

Weakly repelled by a magnetic field
Do not retain magnetization when the external magnetic field is removed
Have a negative magnetic susceptibility
Are typically independent of temperature
Include materials such as wood, water, copper, and gold

Diamagnetic Behavior

When a diamagnetic material is placed in a magnetic field, it will create its own magnetic field in the opposite direction. This causes the material to be repelled by the external magnetic field. The repulsion is extremely weak, and diamagnetic materials are often overshadowed by the magnetic properties of paramagnetic and ferromagnetic materials.

Real-Life Applications

Diamagnetic materials are used in various scientific applications, including levitation and magnetic resonance imaging (MRI). Superconductors, which exhibit strong diamagnetic properties, are used in magnetic levitation (maglev) trains. Additionally, the diamagnetic properties of certain materials are utilized in MRI machines to create detailed images of internal body structures.

Study Guide

When studying diamagnetic materials, consider the following key points:

Understand the concept of diamagnetism and how it differs from paramagnetism and ferromagnetism.
Learn the properties of diamagnetic materials and how they behave in the presence of a magnetic field.
Explore real-life applications of diamagnetic materials, such as in levitation and medical imaging.
Practice identifying diamagnetic materials and understanding their significance in various scientific and technological fields.

By mastering the concept of diamagnetism and its applications, you can gain a deeper understanding of the role of magnetic materials in modern science and technology.

◂Science Worksheets and Study Guides Sixth Grade. Our impact on earth

Vocabulary/Answer key

Our impact on earth

The resources above cover the following skills:

EARTH AND SPACE SCIENCE

Earth’s Systems

Analyze and interpret data (e.g., tables, graphs, maps of global and regional temperatures; atmospheric levels of gases such as carbon dioxide and methane; rates of human activities) to describe how various human activities (e.g., use of fossil fuels, creation of urban heat islands, agricultural practices) and natural processes (e.g., solar radiation, greenhouse effect, volcanic activity) may cause changes in local and global temperatures over time.

Earth and Human Activity

Analyze evidence (e.g., databases on human populations, rates of consumption of food and other natural resources) to explain how changes in human population, per capita consumption of natural resources, and other human activities (e.g., land use, resource development, water and air pollution, urbanization) affect Earth’s systems.

Implement scientific principles to design processes for monitoring and minimizing human impact on the environment (e.g., water usage, including withdrawal of water from streams and aquifers or construction of dams and levees; land usage, including urban development, agriculture, or removal of wetlands; pollution of air, water, and land).