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Ch 5 Shaping Earth
4th Grade Earth Science
| Question | Answer |
|---|---|
| Natural features on Earth's surface | landforms |
| Tallest and most visible landforms | mountains |
| Flattest kind of landform; vast areas of land without hills or mountains | plain |
| The area drained by flowing water | drainage basin |
| Part of the land that is covered by the sea; it can stretch seaward for miles | continental shelf |
| Beyond the continental shelf there is a land that is the steeper part of the continent that slopes down toward the ocean floor | continental shelf |
| rock that makes up Earth's outermost layer; it is brittle and can crack easily; Earth's landforms and underwater features are found on this | crust |
| layer of rock below the crust that is sol\id but some of the rock can move or change shape at high pressures and temperatures | mantle |
| liquid layer below the mantle; it is made mostly of melted iron | outer core |
| sphere of solid material at Earth's center; it is the hottest part of Earth and it is probably made of iron | inner core |
| Earth's surface is broken into several huge plates of rock. _______ are made of crust and the upper part of Earth's mantle. | Plates |
| As plates get pushed and p ulled, cracks called _______ form in the crust. A _______ is a crack in the crust along which movement takes place. | Fault |
| Rocks on either side of a fault can slide up or down compared to the other side. Faults can sometimes form __________. | fault-block mountains |
| A high landform. | Plateau |
| Some plates meet at the edges of continents. If the land scrunches up between them, a ____ forms. A _____ is a bend in the rock layers. | fold |
| A tall landform. | mountain |
| A sudden shaking of Earth's crust that is caused by sudden movements along a fault. | Earthquake |
| A giant wave that might hit the shore and cause great damage along coastlines | tsunami |
| The vibrations caused by earthquakes | seismic waves |
| Scientists measure seismic waves with an instrument called _______________. | Seismograph |
| A mountain that builds up arounda n opening in Earth's crust is called a _________. | volcano |
| Melted rock is called ______. | magma |
| Once magma reaches Earth's surface, it is called _______. | lava |
| Some volcanoes form over thin places in Earth's crust called _______. | hot spots |
| In the Pacific Ocean, an example of volcanoes that formed over a hot spot is the ____________ Islands. | Hawaiian |
Created by:
jromagno
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