Relier Pairs EARTH'S HISTORYVersion en ligne MATCH THE DEFINITIONS par Clara Beltran 1 Sedimentary, metamorphic, igneous rocks. 2 People who study fossils. 3 Evidence that and organism once existed in an area. 4 Any individual living thing. 5 TECHNIQUE USED TO DATE MATERIALS SUCH AS ROCKS. 6 Extremely old. 7 Rock type that is usually made of sand, clay, pebbles or sometimes shells cemented together, often find in layers. 8 Modifications in successive generations. FOSSIL PALEONTOLOGISTS RADIOMETRIC DATING TYPES OF ROCKS ANCIENT EVOLUTION ORGANISM SEDIMENTARY ROCK