physical changes

Question 1

what are the three states of matter

Answer 1

solid, liquid, gas

Question 2

6 physical processes of solid liquid and gas

Answer 2

melting, freezing, evaporating, condensing, subliming, dissolving

Question 3

differences in a physical change and chemical change

Answer 3

physical-no actual reaction happens
chemical-no new substances made

Question 4

physical change doenst involve a change in ______

Answer 4

mass

Question 5

properties of solids (4)

Answer 5

small distance in-between, high density, vibrates, cant flow

Question 6

properties of liquids (4)

Answer 6

small distance in between, high density, slow, can flow

Question 7

properties of gases (4)

Answer 7

large distance in between, low density, very fast, can flow

Question 8

what is the brownian motion

Answer 8

random movement of any floating particle in liquid or gas

Question 9

what is diffusion

Answer 9

spreading out of particles from area of higher concentration to area of lower contentration

Question 10

changes in temperature e.g thermometer

Answer 10

higher temperature, particles move faster, spaces in between widen, substance expands