! UPDA T 6/2 ED 014 Layers of the Earth Sort and Foldable ©Curly Que Science, 2013. All Rights Reserved. ! Teacher Directions: ! Layers of the Earth Sort and Foldable Group Size: 1-2 Estimated time: 45 minutes Materials needed: Cards laminated and cut out, pencil, and color pencils. ! This is two activities in one. The students will be reading the information on the cards to determine which one of Earth’s layers it is describing. • Copy the cards onto cardstock, laminate and cut out. You can use them from year to year. • I have changed the layout where there will be two fold notes per page. When you copy them (depending out your copier) you may have to flip the back pages. Then just cut along the middle and you will have two fold notes. I also did not add any other lines so that it is easier to fold. When you fold make it a layered book. ! • I have left the pictures black and white so the students can personalize their foldable for their science journal. ! ! ! Student Directions: ! Read the facts that are on each card. Determine which of the Earth’s layers the fact belongs. Place the cards of each layer in a group. When you have sorted through all of the cards, write the facts down in the foldable. 5. Label any drawings. 6. On the last flap, draw and label a picture of the Earth’s layers. Include information such as: a. Name of layer b. Thickness of the layer c. What the layer is composed of. d. Average temperature of the layer. 7. Use the color pencils to color your foldable and then add it to your journal. 1. 2. 3. 4. ! ! ! Boundaries of tectonic plates are where MOST earthquakes and volcanoes are located. • • • • • • Continental Crust Less dense Floats on top Up to 32km thick Made of quartz, granite and feldspar Solid ball of metal because of extremely high pressure. About 1250 km thick Magma cools down becoming denser so it sinks. • • • • • • • Oceanic Crust Up to 10km thick Denser than continental crust Made of basalt Extremely high temperatures of 7,200°C or higher Hotter than the surface of the sun Convection Currents occur in this layer because of the density changes in the magma. Magma gets heated and then becomes less dense and rises. This layer is a giant ball of liquid hot This layer is about 2200km thick and metals such as iron and nickel. has a temperature that is estimated It has a very high density. at about 4300°C. The inner core spins over this layer which creates the earth’s magnetic field. This is why compasses can tell you which direction you are going. This layer makes up about 80% of the Earth’s mass. This layer is made of iron (Fe), Aluminum (Al), Calcium (Ca), Magnesium (Mg), Silicon (Si) and Oxygen (O). Since this layer is so large, there is a temperature difference between the top (1600°C) and the bottom (4000°C). • • ! Layers of the Earth Layers of the Earth Crust Facts crust facts Draw and Label Draw and label Crust crust Mantle facts mantle facts Inner core inner core Mantle mantle outer core facts outer core facts outer core outer core Answer Key: Boundaries of tectonic plates are where MOST earthquakes and volcanoes are located. CRUST • • • • • • Continental Crust Less dense Floats on top Up to 32km thick Made of quartz, granite and feldspar CRUST Solid ball of metal because of extremely high pressure. About 1250 km thick INNER CORE Magma cools down becoming denser so it sinks. MANTLE • • This layer is a giant ball of liquid hot metals such as iron and nickel. It has a very high density. OUTER CORE The inner core spins over this layer which creates the earth’s magnetic field. • This is why compasses can tell you which direction you are going. INNER CORE • • • • • Oceanic Crust Up to 10km thick Denser than continental crust Made of basalt CRUST Extremely high temperatures of 7,200°C or higher Hotter than the surface of the sun INNER CORE Convection Currents occur in this layer because of the density changes in the magma. MANTLE Magma gets heated and then becomes less dense and rises. MANTLE • This layer is about 2200km thick and has a temperature that is estimated at about 4300°C. OUTER CORE • This layer makes up about 80% of the Earth’s mass. MANTLE • Since this layer is so large, there is a This layer is made of iron (Fe), Aluminum temperature difference between the (Al), Calcium (Ca), Magnesium (Mg), Silicon top (1600°C) and the bottom (4000°C). (Si) and Oxygen (O). MANTLE MANTLE ! ! ! ! Here are some pictures of the finished product from one of my students. ! ! ! ! Credits: Earth Layers http://www.teacherspayteachers.com/Store/Lita-Lita Earth Face http://www.teacherspayteachers.com/store/caitlin-miller Information: http://www.buzzle.com/articles/four-main-layers-of-the-earth.html !
