Name ………………….. Year 8 Science Test Elements Compounds …
Name .......................
Year 8 Science Test Elements Compounds and Mixtures
22 marks
1
(1)
An element is a substance that:
A is made of atoms.
B cannot be broken down into other substances.
C contains water.
D is a metal used in kettles.
2
(1)
The lightest element is:
A helium.
B hydrogen.
C lithium.
D carbon.
3
(1)
Identify the list that contains only non-metals.
A Oxygen, carbon, lithium
B Helium, hydrogen, fluorine
C Mercury, copper, zinc
D Helium, hydrogen, silicon
4
(1)
The component of an atom that is positively charged is the:
A proton.
B electron.
C neutron.
D neutrino.
5
(1)
A compound:
A is made of different elements that are not joined strongly together.
B is made of different elements whose atoms are bonded strongly together.
C has similar characteristics to the elements it is made from.
D is a type of mixture containing only a few different types of atoms.
6
(1)
A group of atoms bonded to each other is called:
A a molecule.
B an alloy.
C a mixture.
D an element.
7
(1)
Which of the following diagrams best represents a compound? (Different sized circles represent
different atoms.)
1
Name .......................
Year 8 Science Test Elements Compounds and Mixtures
8
(2)
Into which two elements can water be broken down?
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9
(4)
Describe two features of:
(a) metals
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_____________________________________________________
(b) non-metals.
_____________________________________________________
_____________________________________________________
10
(3)
Give a written definition of:
(a) an element
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_____________________________________________________
(b) a compound
_____________________________________________________
_____________________________________________________
(c) a mixture.
_____________________________________________________
_____________________________________________________
2
Name .......................
Year 8 Science Test Elements Compounds and Mixtures
11
(3)
Use the diagram below to identify examples of:
(a) compounds
(b) elements
(c) mixtures.
12
(3)
Use the periodic table to identify the atomic numbers of:
(a) zinc
(b) gold
(c) iodine.
3
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