test 11/3

Question 1

define matter

Answer 1

anything that takes up space and has mass

Question 2

what holds the atoms of a molecule together

Answer 2

chemical bonds

Question 3

chemical formula of water

Answer 3

H20

Question 4

how would you find the volume of a regular shaped object

Answer 4

displacement

Question 5

physical change example

Answer 5

ripping paper

Question 6

chemical change example

Answer 6

burning wood/paper

Question 7

define density

Answer 7

how much mass is in something

Question 8

elements on the periodic table are made up of small particels called

Answer 8

atoms

Question 9

what is used to find the volume of a liquid

Answer 9

graduated cylinder

Question 10

fire is a

Answer 10

chemical chagne

Question 11

formula for density?

Answer 11

d=m/v

Question 12

smallest particle that can still be considered an element

Answer 12

atom

Question 13

what is an atom

Answer 13

the smallest particle of an object

Question 14

examples of physical properties

Answer 14

hardness, freezing point, color, and texture

Question 15

what is the law of the conservation of mass

Answer 15

matter cannot be created nor destroyed `

Question 16

silver tarnishing is a

Answer 16

chemical change

Question 17

what are the units we use to measure volume

Answer 17

liters, millimeters, and cubic centimeters

Question 18

define mass

Answer 18

the measure of the amount of matter in an object

Question 19

2 properties we use to classify matter

Answer 19

chemical and physical properties

Question 20

why do some objects float while others sink

Answer 20

their density is either greater than or less than 1 (the density of water)

Question 21

what is a compound

Answer 21

a substance formed by two or more elements that are chemically combined in a set ratio