WorksheetsELEMENTS,COMPOUNDS AND MIXTURES
Total questions: 30
Worksheet time: 30mins
Elements are made of
Many types of atoms
the Periodic Table
One type of atom
Molecules
Molecules are
2 atoms joined together
2 elements joined together
2 or more atoms mixed together
2 or more atoms (same or different) joined together
The smallest particle that makes everything
atom
element
compound
mixture
All ____________ are made up of two or more atoms bonded together.
atoms
molecules
electrons
elements
What is water (H2O)?
element
compound
mixture
Which example is a compound?
N2
O2
Cu
H2O2
How many total atoms are is 3CO4?
20
15
3
12
How many total atoms are in 4NO?
4
8
12
16
Helium
H
He
Hi
Hm
Carbon
C
Ca
Cr
Cn
Majority of elements are _____.
Metals
Nonmetals
Metalloids
Alloy that can be used for jewellery, machine bearings, and door furniture
brass
bronze
pewter
duralumin
Steel generally speaking is made of
iron and carbon
copper and iron
tin and carbon
aluminum and nickel
This method is a technique used in separating a less-dense substance from a denser one.
decantation
evaporation
distillation
filtration
This technique is based on the differences of the boiling point of the substance in the mixture.
decantation
distillation
filtration
chromatography
This method is used to separate metals from non metals.
use of magnet
physical manipulation
sieving
chromatography
This method is used in separating soluble solid from a liquid such as salt from water.
evaporation
distillation
decantation
filtration
What method is used to separate rice from husk?
winnowing
sieving
filtering
evaporation
THESE ARE METHODS FOR SEPARATING MIXTURES
goldminers, chromatography, distillation
distillation, filtration, evaporation
chromathography, evaporation, condenser
solution, mixtures, filtration, evaporation
THIN LAYER CHROMATOGRAPHY IS
A special type of chromatography used for separating and identifying mixtures that are or can be colored, especially pigments.
A special type of chromatography used for joining and identifying mixtures that are or can be colored, especially pigments.
A special type of aparatus used for separating and identifying mixtures that are or can be colored, especially pigments.
A special type of chromatography used for separating and identifying objects that are or can be colored, especially pigments.
