1) What is an atom a) smallest particle of a matter  b) a substance made of 2 or more elements c) chemically combined d) a table with all known elements 2) What is a compound? a) a pure substance composed of the same type of atom throughout b) a substance made of 2 or more elements that are chemically combined in fixed amounts c) a table with all known elements d) all the water on earth 3) What is an element? a) a pure substance composed of the same type of atom throughout b) smallest particle of an element c) all living things d) layer of gas surrounding the planet 4) What is an atmosphere? a) a layer of gas surrounding the planet earth held in place by gravity b) the rigid outer part of the earth consisting of the crust and upper mantle c) the sum of all living things 5) What is lithosphere? a) the rigid, outer part of the earth consisting of the crust and upper mantle b) all living things c) a layer surrounding the planet earth d) all of the water on earth 6) What is a hydrosphere? a) all of the water on earth b) all living things c) the rigid outer part of the earth consisting of the crust and upper mantle

Elements and Compounds

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