Magnetism
Magnetism is a force that can attract or repel objects. It is caused by the motion of electric charges. Magnets have two poles - north and south - and opposite poles attract each other while like poles repel each other.
Types of Magnets
- Natural Magnets: Found in nature, such as lodestone.
- Permanent Magnets: Retain their magnetism once magnetized.
- Temporary Magnets: Only retain magnetism while in a magnetic field.
- Electromagnets: Created by passing an electric current through a coil of wire wrapped around an iron core.
Magnetic Materials
Materials that can be attracted by a magnet are called magnetic materials. Common examples include iron, nickel, and cobalt.
Uses of Magnets
- Magnetic compass for navigation
- Refrigerator magnets
- Electric motors and generators
- Magnetic resonance imaging (MRI) machines in healthcare
Magnetic Field
A magnetic field is the area around a magnet where its force is felt. The magnetic field of a magnet is strongest at its poles.
Study Guide
- What causes magnetism?
- What are the two types of poles in a magnet?
- Give examples of natural magnets.
- Explain the difference between permanent and temporary magnets.
- How is an electromagnet created?
- List three uses of magnets in everyday life.
- Where is the magnetic field of a magnet strongest?
[Magnetism] Related Worksheets and Study Guides:
.◂Science Worksheets and Study Guides First Grade. Animal groups
Study Guide
Animal groups 
Worksheet/Answer key
Animal groups Worksheet/Answer key
Animal groups Worksheet/Answer key
Animal groups Vocabulary/Answer key
Animal groups
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Design a solution to a human problem by using materials to imitate how plants and/or animals use their external parts to help them survive, grow, and meet their needs (e.g., outerwear imitating animal furs for insulation, gear mimicking tree bark or shells for protection).