1) What is a molecule? a) a cenral part of an atom b) a group of two or more atoms 2) What is an element? a) substances that are made of only one type of atom b) substances that are made of 2 or more types of atoms 3) Nucleus is... a) a central part of an atom b) the study of substances 4) Our genes are made up of sections of ... a) formulae b) DNA 5) Substances that are made of two or more elements are called a) formulas b) compounds 6) Each living thing is made of .... a) cells b) gases 7) Physics is the study of a) matter b) formulas 8) Which is NOT a form of substances? a) solids b) liquids c) momentum 9) What is momentum? a) the force that keeps an object moving b) the force that makes things fall to the ground

Science

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