Properties of Matter

Question 1

matter

Answer 1

anything that takes up space and has mass

Question 2

chemistry

Answer 2

the study of matter and how it changes

Question 3

substance (2)

Answer 3

any compound, element, or molecule, will have a formula

Question 4

physical properties

Answer 4

can be observed without changing it into something else

Question 5

chemical properties

Answer 5

describe a substance’s ability to change into different substance

Question 6

elements (2)

Answer 6

simplest substances that can’t be broken down into any other substance, anything on the periodic table

Question 7

atom (3)

Answer 7

basic particle from which elements are made. Contains positive center and surrounded by negative electron cloud

Question 8

molecules (2)

Answer 8

when atoms or elements chemically bond with each other to form a new substance (similar to compounds)

Question 9

compounds (3)

Answer 9

made of 2+ elements that are chemically combined in a set ratio, has chemical formula, have properties that are different from the elements that make it

Question 10

mixtures (3)

Answer 10

made of 2+ substances in the same place but not chemically combined. substances keep their chemical properties. no set ratio

Question 11

heterogeneous mixture

Answer 11

can see the different parts (salad)

Question 12

homogeneous mixture (2)

Answer 12

can’t see the different parts (juice), a solution

Question 13

separating mixtures(4)

Answer 13

magnets, filtration, distillation (boiling points), evaporation

Question 14

weight (2)

Answer 14

measure of the force of gravity on you, changes with location

Question 15

mass (3)

Answer 15

measurement of the amount of matter of an object, does not change with location, measured in grams

Question 16

volume (4)

Answer 16

amount of space that matter occupies, measured in liter, cubic centimeter, LxWxH

Question 17

density (3)

Answer 17

mass of a material in a given volume, mass/volume, measured in g/cm cubed

Question 18

density of water (2)

Answer 18

1 g/cm cubed. if object’s density>water it will sink

Question 19

physical change (4)

Answer 19

any change that changes the appearance of matter but doesn’t create new substances (change of state and shape/form)

Question 20

chemical change(7)

Answer 20

any change that produces new substances with properties different from the original substances, the bonds between atoms break and new ones form (combustion–>burning, oxidation–>rust, electrolysis–>separating water, tarnishing–>silver+oxygen)

Question 21

law of conservation of mass

Answer 21

matter is not created or destroyed in any physical or chemical change

Question 22

energy (2)

Answer 22

the ability to do work/cause change. Every change in matter involves a change in energy

Question 23

temperature

Answer 23

the measure of the motion of particles

Question 24

endothermic energy

Answer 24

takes in heat/energy

Question 25

exothermic energy

Answer 25

gives off heat/energy

Question 26

kinetic energy (2)

Answer 26

energy go matter in motion (rolling a bowling ball)

Question 27

potential energy (2)

Answer 27

energy an object has because of its position (stretching a rubber band)

Question 28

chemical energy (2)

Answer 28

energy store in chemical bonds between atoms (cellular respiration)

Question 29

electromagnetic energy (2)

Answer 29

energy that travels through space as waves (light)

Question 30

electrical energy (2)

Answer 30

energy of electrically charged particles moving around (battery)

Question 31

thermal energy (2)

Answer 31

heat energy (a fire)

Question 32

energy transformed (2)

Answer 32

when one energy changes into another type (photosynthesis: electromagnetic–>chemical)