Determine whether the sentences describe sedimentary rock, intrusive igneous rock, or both. -they are formed above earths surface. -they form in earths crust or mantle. they are solid at room temperature. -they are made of molten rocks called magma. -they are made of weathered pieces of rock. -they have a diverse composition. they may contain many types of minerals.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.