lesson 4

Question 1

does gold melt slower than iron or faster

Answer 1

it melts faster

Question 2

how do i separate salt from water

Answer 2

boil water and condense it into another beaker and then u get salt and water separated

Question 3

how to separate salt from rock salt

Answer 3

filter sand out
put solutuion in thermal glass
get buinsen burner and boil water
u get salt

Question 4

name all the apparatus that is used for eveaporatng suibtances

Answer 4

bunsen burner
tripod
heat mat
evaporating dish
gauze

Question 5

fill in the gaPs:
Roack salt is a _______ of sand, salt and rock. when _____________ is added to rock salt and stirred the salt is dissolves. the sand and rock are _____________ this means they can be separated by _____________ the liquid left is a ______ of salt _______ in water
words:
water , mixture , insoluble , soluble , dissolved , filtering

Answer 5

Roack salt is a mixture of sand, salt and rock. when water is added to rock salt and stirred the salt is dissolves. the sand and rock are soluble this means they can be separated by filtering insoluble the liquid left is a solution of salt dissolved in water

Question 6

fill in gaPs:
if left in an evaporating basin , the water will ______ leaving the _____ or solid salt crystals behind
words:
solute evaporate

Answer 6

if left in an evaporating basin , the water will evaporate leaving the solute or solid salt crystals behind