quiz on matter, properties and change

Question 1

matter

Answer 1

stuff that has mass and takes up space; 3 states: solid, liquid, gas

Question 2

atom

Answer 2

smallest particle that makes up element

Question 3

element

Answer 3

substance that can’t be broken down into other substances by chemical methods; each is unique

Question 4

compound

Answer 4

substance composed of a given combination of elements that can be broken down into those elements by chemical methods; elements are always combined in the same proportions

Question 5

mixture

Answer 5

mix of substances that have a variable composition; is classified as homogeneous or heterogeneous

Question 6

homogeneous mixture

Answer 6

parts of mixture will be consistent in amounts the make it up ex. a solution

Question 7

heterogeneous mixture

Answer 7

parts of mixture have different properties than other regions ex. salad, sand in water

Question 8

pure substance

Answer 8

substance that will always have the same composition; either an element or compound

Question 9

physical change

Answer 9

chemical composition remains; change of one or more properties: ex. state change, color, density, volume

Question 10

chemical change

Answer 10

bonds are broken and new bonds are formed; chemical composition changes: ex. color/odor, emission, heat, precipitate, light

Question 11

physical property

Answer 11

something you can see/observe without a chemical change happening: ex. luster, color, volume, state, density, melting point, boiling point, shape, malleability

Question 12

chemical property

Answer 12

something you can see only if substance is undergoing reaction: ex. acidity, reactivity, flammability