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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. 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.