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Earth Science Facts

New, crescent, quarter, ____, and full describe lunar phases. billion
Dinosaurs lived on the Earth from 230 to 65 ____ years ago. gibbous
Cooled lava and magma solidify to form ____ rocks. igneous
Heat and pressure are required to create ____ rocks. lava
Amber, coral, pearl, and shell are ____ (unlike true minerals). metamorphic
The molten rock expelled by a volcano is called ____. million
The Earth was formed about 4.5 ____ years ago. organic
Earthquakes create ____ waves, which are sound waves. seismic