oneone Objective: To perform simulations in order to explain how magnetism occurs in some substances Energy Note: Why are some materials magnetic? Drill: 1. Take out your reading, “Inside a Magnet”. 2. Get a Lesson Sheet from the SET. 3. Complete Activity 1 on the ditto. EEM-10A

oneone Activity 1: Drill T F 1. All magnetic materials are magnets. T F 2. A spinning electron produces a small magnetic field. T F 3. Every atom acts like a tiny magnet. T F 4. Groups of atoms that are lined up with each other are called magnetic domains. T F 5. Not all substances form magnetic domains. T F 6. In a magnetized substance all or most of the domains are arranged in the same direction. T F 7. A magnetic substance is not magnetized if the domains point in random directions. T F 8. If a magnet is broken in half, it becomes two new magnets, each with its own poles. EEM-10A

oneone Activity 2: Ditto – Exploring Domains 1.Electrons…let’s spin! 2.Substances that are not magnetic 3.What’s a domain? 4.Magnetized or not magnetized. 5.Oh No! We have to move the school! 6.I broke my magnet…or did I? EEM-10A

oneone Slide #1 A spinning electron produces a magnetic field. N _ S Let’s stand. EEM-10A

oneone Slide #2 Every atom acts like a tiny magnet. S N.

oneone Slide #3 In most substances the atoms point in random directions. These materials are not magnetic. EEM-10A

oneone Slide #4 Sometimes groups of atoms line up with each other. These groups are called magnetic domains. This is a domain. EEM-10A

oneone Slide #5 A magnetic substance is not magnetized if the domains point in random directions. Can we save the school? EEM-10A domain:

oneone Slide #6 A substance is magnetized if all or most of the domains are lined up. Mrs. Magness to the rescue!!! EEM-10A domain:.

oneone Slide #7 If a magnet is broken into two pieces, two magnets are formed each with their own north and south poles. EEM-10A S N S N S N

oneone Drill REDO T F 1. All magnetic materials are magnets. T F 2. A spinning electron produces a small magnetic field. T F 3. Every atom acts like a tiny magnet. T F 4. Groups of atoms that are lined up with each other are called magnetic domains. T F 5. Not all substances form magnetic domains. T F 6. In a magnetized substance all or most of the domains are arranged in the same direction. T F 7. A magnetic substance is not magnetized if the domains point in random directions. T F 8. If a magnet is broken in half, it becomes two new magnets, each with its own poles. EEM-10A

oneone SUMMARY NOTES EEM-10A

oneone Homework Prompt: In your log book write about how you can make a magnet. EEM-10A