Rocks and Fossils. review

Match terms and thier definitions. Use the Power Point "Rocks Cycle, Fossils and Extinctions" weathering rocks are broken into sediments erosion sediments are tranported to a new location sediments tiny pieces of rocks fossils remaisl of oranisms that turned into rocks extinction no more organisms of this type are alive Put ideas about the types of rocks into the correct categories. Igneous rocks made of lava made of magma made by cooling (getting colder) made by hardening (turning into solid) Sedimentary rocks made from sediments made by cementing have fossils in them made by compacting Metamorphic rocks made from any type of rocks made by heat and pressure rocks change, but do not melt Extinctions. Read the paragraph and fill the blanks (empty spaces) wiht missing words. Click on the blanks to see words you can choose from. Extinction is complete loss of one type of organisms. Species go extinct all the time because environmenton earth changes all the time as well. Mass extinction happens when many types of organisms (species) disappear at the same time. There have been five mass extinctions in the history of the earth. One example of mass extinction is the end of the age of dinosaurs. Many scientists think that another mass extinction is happening now. This extinction may be caused by people and their activity. How do scientists learn most of the information about live (organisms) on earth in the past? by time travelling by studying fossils by studying different biomes by studying the three types of rocks Fossils are various sediments pressed into layered rocks collections of plants and animals from all continents remains (big and small pieces of organisms) preserved in rocks dinosaur bones and eggs preserved in rocks Fossils can be made by preservisng organisms in ice and tree sap (amber) replacing organic matter of organisms' remains with minerals imprints of organisms (plants and animals) left in soil all of the above