About how old are the oldest rocks on earth ?, 1 million years, 10 billion years, 100 million years, 4 billion years, How do scientists figure out how old rocks are ?, By their color, By weighing them, Using special tests on minerals, By guessing, Which type of rock helps scientists learn the age of Earth the best ?, Sand, water, Igneous rock, Soil, How sedimentary rocks formed ?, I don’t know, By burning rocks, By cooling of lava, By layers of sediment being pressed and cemented togetherBy layers of sediment being pressed and cemented together, What role does water play in forming of sedimentary rocks ?, Melting rocks, It helps move sediments from one place to another, It turns rock into gas, Destroys all sediments, Why don’t fossils usually form in igneous rocks?, Igneous rocks form from melted material that destroys remainsIgneous rocks form from melted material that destroys remains, Igneous rocks are made of sand, Igneous rocks are always underwater, igneous rocks are too soft, What is a fault in rock layers ?, Type of fossil, A kind of sediment, A break in earths crust when movement occurs, Melted rock, What is the main purpose of using rock layers to determine relative age ?, To figure out what events happened earlier, To measure temperature, to find the weight of rocks, to change the rock, Relative age tells the exact number of years a rock is., True, False

Leaderboard

Visual style

Options

Switch template

Continue editing: ?