8th; Unit 1: Lessons 1-3 Vocabulary Terms

Question 1

matter

Answer 1

anything that has mass and takes up space; anything that takes up space even if you can’t see it

Question 2

mass

Answer 2

the amount of matter in an object

Question 3

weight

Answer 3

the measure of the gravitational pull on an object

Question 4

volume

Answer 4

the amount of space an object takes up

Question 5

density

Answer 5

the measure of the mass in a given volume

Question 6

physical property

Answer 6

characteristics of a substance that can be observed and measured without changing the substance’s identity

Question 7

chemical property

Answer 7

a substance’s ability to change into a new substance with new properties

Question 8

physical change

Answer 8

a change that affects one or more physical properties of a substance

Question 9

chemical change

Answer 9

occurs when one or more substances change into completely new substances with new properties

Question 10

law of conservation of mass

Answer 10

states that in ordinary chemical and physical changes, mass is not created or destroyed but is only transformed into new substances