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DE Science Elementary

DE Science Elementary

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DE Science Elementary

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  1. DE Science Elementary “5-Minute Prep” ForElectricity and Magnetism Magnetism Magnets

  2. Magnets – The Big Ideas • Magnetic materials attract or repel each other. • A magnet has two poles that determine which end attracts or repels another. • Magnetic materials attract iron and nickel.

  3. Magnets – Prior Knowledge Students are fascinated by the attraction and repulsion of magnets. It will help for students to use the FUN-damental, Electricity and Magnetism, to review magnets. It will also be helpful if students have: • observed or interacted with magnets on a refrigerator or blackboard. • played with toys that contain magnets.

  4. Magnets – Common Misconceptions • All metals are attracted to a magnet. • Reality: Magnetic materials attract iron and nickel. There are numerous other metals, such as aluminum, that are not attracted to magnets. • All magnets are made of iron. • Reality: Magnets are made from materials that contain nickel, iron, or cobalt. In fact, the strongest magnets, which are rare, are made from Neodymium and Samarium Cobalt.

  5. Magnets – Using DE Science Content When you close this presentation, you can review the following recommended resources for Magnets. • Exploration: Magnets • Reading Passage: A Floating Train • Video: Attract and Repel • Video: Magnetic Poles Use the PowerPoint version of this presentation for hyperlinks to these resources or you can get to them through the browser or search feature.

  6. Magnets – Instructional Ideas • Display the first image of the Exploration, Magnets, with the three different magnet boxes on a projector. • Ask students to predict and draw their predictions for how the magnetic fields will look with certain poles lined up. • Then, complete the Exploration in small groups at a computer. • Have students draw the magnets with the poles labeled and the pattern of iron filings showing the magnetic fields in their science journals.

  7. Magnets – Instructional Ideas • Supply several different types of magnets with varying strength to each pair of students. • Ask students to predict which magnet is the strongest. • Have students design and implement an experiment to determine which magnet is the strongest. • It will be helpful to supply them with a large quantity of one material, i.e. paperclips, to use.

  8. State Standards: If you wish to review your state standards regarding Magnets, click here to get to the curriculum standards search feature of DES. http://tools.discoveryeducation.com/CurriculumStandard.cfm You can click on any standard to see what resources are available to teach it. Additional Information: For additional content, check the Extend section within the concept.