Vocab

Question 1

Matter

Answer 1

any substance that has both mass and volume. (everything) (anything that weighs something and takes up space)

Question 2

mass

Answer 2

the amount of matter contained in a substance

Question 3

volume

Answer 3

the amount of space an object occupies

Question 4

density

Answer 4

mass per unit volume

Question 5

solid

Answer 5

substance with definite shape, definite volume, and a high density

Question 6

liquid

Answer 6

substance with definite volume but takes the shape of its container

Question 7

gas

Answer 7

substance with no definite shape nor definite volume and a very low density

Question 8

element

Answer 8

a pure substance made up of only one atom

Question 9

atom

Answer 9

the smallest part of matter that still maintains the properties of that substance

Question 10

nucleus

Answer 10

the positively charged center of an atom that contains most of the mass of of the atom and very little of the atoms volume

Question 11

electrons

Answer 11

negatively charged subatomic particles

Question 12

molecule

Answer 12

a group of atoms chemically bound together; the smallest unit of a compound

Question 13

compound

Answer 13

2 or more types of atoms chemically bound together

Question 14

chemical formula

Answer 14

shows a total number and kinds of molecules in a compound

Question 15

subscript

Answer 15

a number written in the lower right corner of an element symbol showing how many atoms of the element exist in that compound

Question 16

coefficient

Answer 16

a number written before a formula to represent the number of molecules present of that compound (H2O. 2 is the coefficient)

Question 17

mixture

Answer 17

made of two or more different substances that are physically joined but not chemically bound together

Question 18

protons

Answer 18

positively charged subatomic particles

Question 19

neutrons

Answer 19

neutral subatomic particles

Question 20

solution

Answer 20

a mixture in which one form of matter is dissolved into another

Question 21

solute

Answer 21

the substance that is dissolved

Question 22

solvent

Answer 22

the medium the substance is dissolved in

Question 23

physical change

Answer 23

change in matter that may alter the size, shape, or phase but the atoms are not rearranged to form new substances

Question 24

chemical change

Answer 24

change in which atoms are rearranged to form a new substance

Question 25

concentration

Answer 25

comparing whats inside the cell compared to whats outside