Physical+Science-Magnetic+Interaction+(pg.+257-274)

Physical Science-Magnetic Interaction (pg. 257-274) 10/12 p. 265-268 Field of Force __GLE__: 0307.12.1 Explore how magnets attract objects made of certain metals. __Checks for ____Understanding__: 0307.12.2 Determine that only certain types of objects are attracted to magnets. __SPI__: 0307.12.1 Recognize that magnets can move objects without touching them. 0307.12.2 Identify objects that are attracted to magnets __GLE:__ 0207.12.1 Experiment with magnets to determine that objects can move without being touched. __Checks for Understanding__ 0207.12.1 Explain how two magnets interact. **3. Magnetic Pole- Sarah Roach** __GLE__: 0807.12.2 Design an investigation to change the strength of an electromagnet. 0807.12.3 Compare and contrast the earth’s magnetic field to that of a magnet and an electromagnet. 0807.12.4 Identify factors that influence the amount of gravitational force between objects. __Checks for Understanding__: 0807.12.2 Produce an electromagnet using a bar magnet and a wire coil. 0807.12.3 Experiment with an electromagnet to determine how to vary its strength. __SPI__: 0807.12.1 Recognize that electricity can be produced using a magnet and wire coil. 0807.12.3 Distinguish among the Earth’s magnetic field, a magnet, and the fields that surround a magnet and an electromagnet. **4. Magnetic Theory and Care of Magnets - Tina Gibson** __GLE:__ 0407.12.1 Explore the interactions between magnets. __SPI:__ 0407.12.1 Identify how magnets attract or repel one another. || || **What Makes a Magnet? -- Tina Gibson** This is a very informative book that has many of the activities that are in the textbook. It explains each activity and tells a lot of facts and history about magnets. I could use this book to guide students through magnet activities. By using this book in a lesson about magnets it will give students a visual aid to help them understand how to do the activities. The book also gives an explanation of each step in the activity which would help students understand how and why the activities work. || media type="custom" key="10793836" || ( Volume 4) Page 67-71 This formative assessment probe will be used directly after my lesson on making magnets. You have to be able to create magnets before you experiment with them. || **1. Magnets and What They Attract - Meagan Ricks** @http://www.tooter4kids.com/Magnets/fun_facts.htm This is a really fun, educational website. It has fun facts, poems about magnets, how to make your own magnet, and a few lesson plans. @http://familycrafts.about.com/od/makingmagnets/Magnets.htm This website lists a different variety of magnets that can be made by students, such as an apple magnet. Plus, the students can give their final magnet as a gift to their parents for their refrigerator. This website is really neat. It talks about the "magnet" inside the Earth. It also talks about the North and South Poles. This is a great website explaining the theory of magnets. It also has information on the history of magnets and how to use them. || **1. Magnets and What They Attract - Meagan Ricks** http://mypages.iit.edu/~smile/mp0398.htm The purpose of this lesson plan is to help students investigate magnetic strength, which part(s) of a magnet are the strongest, and what magnetic attraction is. It uses stations for different concepts and allows students to make and test predictions. @http://www.uen.org/Lessonplan/preview.cgi?LPid=2703 This lesson plan is an excellent resource for the upper grade level on how to create a magnet. This lesson plan is intended for the fifth grade level and it helps students realize the how the "magnetic field of Earth and a magnet are similar." Students not only get to construct a manget, but they also get to learn how to create a compass and how it works. This lesson plan already includes the materials needed, additional resources, web sites, and background information, and how the procedure for this activity plays out. This lesson plan is really neat! It is designed for 3rd graders. It talks about how like fields repel each other and opposite poles attract. It also has a lot of neat questions that you could ask your students. @http://www.srpnet.com/education/pdfx/magnetism.pdf This is a great lesson plan that will teach children what is and is not magnetic in a very fun, kid-friendly way. Kids would "go fishing" with a magnet tied to their pencil to determine which items are magnetic and which are not. || ** ﻿Formative Assessment Probe //Magnets in Water// ** - 5 minutes. This probe will be used to broaden their horizons on magnets after completing an activity on how to make magnets. //Page 258 - Magnetic Separations// Time: 15 Minutes I will modify this activity by having the salt and iron filing mixtures ready for the activity rather than having students mix them and will use plates instead of "paper trays.". I will also bring sand and soil to class for the activity instead of taking the students outside. I will show a video for the E-learning portion. @http://www.youtube.com/watch?v=V265pGgsBnM //Formative Assessment #17 - Fist to Five// . 2. **Making Magnets-Katie Mattie** //Page 262-How to Make Magnets// Time: 12 Minutes I will use my formative assessment, Traffic Light Cards, during my activity. I will modify this activity by providing one size of screwdrivers to each table. I will bring my own set of screwdrivers to demonstrate along with the class. For the E-learning, I will discuss permanent and temporary magnets. . Time: 2:12 Minutes Time: 5 minutes //Page 268- Make Your Own Compass// Time: 15 Minutes I will use my formative assessment; **Pass the Question** towards the end of the activity. I will write a question on the board and have the students work in pairs and pass their answers to a different pair of students and then have a couple of students share what they got for an answer. I will also modify my activity by having the tables work in groups of four. Pg. 270 - Lost Magnetism? Time: 10 Minutes I will modify this activity by only testing to see how dropping affects the magnetism of the nails rather than dropping and heating the nails. I will have them record their results. Formative Assessment: Give me Five I will give the class a few minutes to write a brief reflection about lost magnetism and what they learned during the activity. I will ask for five volunteers to share their reflection. ||
 * Content || **p. 258-261 Magnets & What they Attract - Meagan Ricks**
 * Magnets are all around us in homes, schools, etc.
 * Iron, steel, cobalt, and nickel are metals which are attracted by a magnet.
 * Metals which are not attracted by magnets include: brass, aluminum, tin, silver, stainless steel, copper, bronze, and gold. Items that are made of these metals are usually actually made of an attractable metal and simply coated in a thin strip or plate of the metal which is not attractable.
 * A U.S. nickel is actually made mainly of copper so it does not make a good example when experimenting with magnets and metals.
 * Natural magnets which contain the iron ore magnetite from the earth’s crust are called “lodestones” or “leading stones” because they were used by ancient mariners to point to the North Star which was referred to as the “lodestar.”
 * Only a select number of iron ores are magnetized and one theory is that this magnetization was caused by lightning arranging atoms in the ores similar to those of a magnet.
 * Dragging a magnet along the ground or a sandbox may show attraction by some particles. This is because magnetite (the iron ore found in lodestones) is present is many common soils.
 * There are many types of manmade magnets such as: bar, V, U, horseshoe, and cylindrical. These are typically made of steel and made magnetic by electricity.
 * V, U, and horseshoe magnets are the most attractive because two poles are working at once.
 * Alnico magnets are made of aluminum, nickel, iron, and cobalt and are common home and commercial use magnets.
 * p. 262-265 Making Magnets- Katie Mattie**
 * Magnets made from a relatively soft material, such as iron, usually hold their magnetism only a short time, so they are called //temporary magnets.//
 * Those made form a harder material, such as steel, retain their magnetism far longer, so they are called //permanent magnets//.
 * A magnet can be made from an iron nail by stroking the nail in one direction with one pole of a permanent magnet. The nail's magnetic power increases with the number of strokes you apply. Merely rubbing it back and forth will usually bring poor results.
 * A second way to make a temporary magnet is by holding a permanent magnet very close to any attractable object. This kind of magnetism is called //induced magnetism.//
 * You can also make a temporary magnet by wrapping an insulated wire around a nail and connecting the two wire ends to a battery. This is an //electromagnet.//
 * Any wire that carries an electric current generates a weak magnetic field around it. Wrapping the wire around the nail core concentrates the field into the core. Disconnect the wire from the battery, and the nail is no longer an effective magnet.
 * It takes longer to magnetize a steel object by stroking it with a magnet than it does an iron one. However, steel may hold its magnetism for years.
 * A more efficient way to make permanent magnets is by electricity.
 * Superconducting magnets are electromagnets made from special alloys such as niobium-tin or niobium-titanium.
 * Superconducting magnets are very powerful.
 * Telsa is the SI unit of flux density, or field intensity, for magnetic fields and is also called magnetic induction. One telsa is defined as the field intensity generating one newton of force per ampere of current per meter of conductor.
 * The superconducting magnets built today will be used in future particle accelerators, devices that can accelerate electrons or other particles to high energies.
 * p. 268-271 Magnetic Pole- Sarah Roach**
 * The greatest magnetic concentration will always be at the poles.
 * Magnetic fields can go through different materials without any loss of power. This magnetic field is called transparent.
 * An opaque magnetic field would be objects that contain steel or iron. The force goes inside the object and back into the magnet.
 * Earth acts like a huge magnet.
 * An idea of why Earth acts as a magnet is because earth's interior rotates at different speeds. This causes an electrical current to be made which makes a magnetic field.
 * The north and south magnetic poles should not be confused with the north and south geographical poles.
 * When a compass points north, it is not the true north.
 * The magnetic poles are always shifting.
 * p. 271-274 Magnetic Theory and Care of Magnets- Tina Gibson**
 * Science cannot fully explain magnetism.
 * Many tiny clusters of atoms randomly arranged, called domains, are contained within potentially magnetic objects. When an object is stroked in one direction, (magnetized), the domains line up in one direction.
 * Heating a magnet forces the domains into violent motion. This is likely to cause them to be disarranged.
 * If a magnet in repeatedly dropped, it can also cause the domains to be jarred out of line, thus causing the same result as if it was heated.
 * Although magnets can be ruined by heat and being dropped, they can keep much of their power for years when they are properly cared for and stored.
 * The proper way of storage: Place opposite poles of magnets together, place magnets on a small metal bar called a keeper, or place them on a nail.
 * Children should learn not to drop the magnets in order to keep the magnetic properties. ||
 * TN State Standards || **1. Magnets and What They Attract - Meagan Ricks**
 * 2. Making Magnets-Katie Mattie**
 * Children's Book
 * Mixpod || **Magnets- Sarah Roach**
 * Formative Assessment Probe || **Magnets in Water-Katie Mattie**
 * Websites ||
 * 2. Making Magnets-Katie Mattie**
 * 3. Magnetic Pole- Sarah Roach**
 * @http://adventure.howstuffworks.com/outdoor-activities/hiking/compass1.htm**
 * 4. Magnetic Theory and Care of Magnets - Tina Gibson**
 * www.explainthatstuff.com/magnetism.html **
 * Lesson Plans ||
 * 2. Making Magnets-Katie Mattie**
 * 3. Magnetic Pole- Sarah Roach**
 * @http://www.lessonplanspage.com/sciencemagnetlesson-htm**
 * 4. Magnetic Theory and Care of Magnets - Tina Gibson**
 * Activities from the Text ||
 * 1. Magnets and What They Attract - Meagan Ricks**
 * Mixpod Video - Sarah Roach**
 * Book- What Makes a Magnet?- Tina Gibson**
 * 3. Magnetic Pole- Sarah Roach**
 * 4. Magnetic Theory and Care of Magnets - Tina Gibson**