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Question 1

all matter is made up of extremely small ________

Answer 1

particles

Question 2

each __________ has its own kind of particles, different from the particles of other

Answer 2

pure substance

Question 3

particles______each other

Answer 3

attract

Question 4

there are __________ between particles

Answer 4

spaces

Question 5

particles are always ________

Answer 5

moving

Question 6

particles at a higher temperature move______

Answer 6

faster

Question 7

what form the particles of the particle model

Answer 7

atoms

Question 8

why atoms form the particles of the particle model

Answer 8

atoms are the building blocks of the particles in the particle model of matter

Question 9

A water particle is comprised of two ____ atoms and one ______ atom

Answer 9

h2o

hydrogen, oxygen atom

Question 10

three states of matter

Answer 10

solid liquid gas

Question 11

suspension is a h______ mixture which the particles _______ after mixing and the particles are large enough to be ____________

Answer 11

heterogeneous
settle
filtered out

Question 12

colloid: a h______ mixture in which cannot settle but remain ____________

Answer 12

heterogeneous
suspended
eg.fog

Question 13

emulsion : a colloid that can be thickened with ___________________. they can be suspended __________

Answer 13

emulsifying agents

even longer

Question 14

pure substances can be classified as
____________-eg.h2o
____________-eg.gold

Answer 14

h2o- compound- atom, 2+ element

gold- element- one type of atom, cannot be broken down to other substance