The Science Behind Snowflakes: Why They Have 6 Sides
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Why has a snowflake got 6 sides?
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Whether you are a scientist researching a new medicine or an engineer
solving climate change, safety always comes first. An adult must always be
around and supervising when doing this activity. You are responsible for:
ensuring that any equipment used for this activity is in good working
condition
behaving sensibly and following any safety instructions so as not to hurt or
injure yourself or others
Please note that in the absence of any negligence or other breach of duty by us,
this activity is carried out at your own risk. It is important to take extra care at the
stages marked with this symbol:
⚠
Snowflakes
•
They are always flat with 6 sides
•
They are made from H
2
O (Water):
2 molecules of hydrogen
1 molecule of oxygen
•
Their molecules move freely above 4
o
C
•
Below 4
o
C the molecules freeze in the
air, making hexagon shapes
Snowflakes – why a hexagon shape?
•
There are electrons and protons
in the oxygen and hydrogen
molecules
•
This creates a polar charge
1 of 3
Snowflakes – why a hexagon shape?
2 of 3
•
The hydrogen molecules are
attracted to the oxygen
molecules
•
This is called hydrogen bonding
•
So below 4
o
C the hydrogen
bonds crystallise to form snow,
snowflakes and ice
Snowflakes – why a hexagon shape?
3 of 3
•
The polar charge holds the
molecules together
•
As they crystallise, they create a
hexagon lattice
•
The hexagons then tesselate to
make snow, snowflakes and ice
Snowflake activity - make a snowflake
Step 1- Make a square
Fold one corner
of A4 paper
Fold over one
end of the paper
Cut off at the fold
⚠
Snowflake activity - make a snowflake
Step 2
Place the triangle in
the position shown
Fold the right
side as shown
Fold the left
side as shown
Snowflake activity - make a snowflake
Step 3
Cut the 2 folds on
the bottom
⚠
Draw a design
on the triangle
Snowflake activity - make a snowflake
Step 4
Cut out the
pattern
⚠
Unfold the paper to reveal
your snowflake
Discover the intricate beauty of snowflakes and the fascinating reasons behind their hexagonal shape. Learn how the molecular structure of water molecules and hydrogen bonding contribute to the formation of snowflakes with 6 sides. Engage in a safe and educational snowflake-making activity while understanding the science that makes each snowflake unique.
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Presentation Transcript
Science of snowflakes Why has a snowflake got 6 sides?
Science of snowflakes Stay safe Whether you are a scientist researching a new medicine or an engineer solving climate change, safety always comes first. An adult must always be around and supervising when doing this activity. You are responsible for: ensuring that any equipment used for this activity is in good working condition behaving sensibly and following any safety instructions so as not to hurt or injure yourself or others Please note that in the absence of any negligence or other breach of duty by us, this activity is carried out at your own risk. It is important to take extra care at the stages marked with this symbol:
Snowflakes They are always flat with 6 sides They are made from H2O (Water): 2 molecules of hydrogen 1 molecule of oxygen Their molecules move freely above 4oC Below 4oC the molecules freeze in the air, making hexagon shapes
Snowflakes why a hexagon shape? 1 of 3 There are electrons and protons in the oxygen and hydrogen molecules This creates a polar charge
Snowflakes why a hexagon shape? 2 of 3 The hydrogen molecules are attracted to the oxygen molecules This is called hydrogen bonding So below 4oC the hydrogen bonds crystallise to form snow, snowflakes and ice
Snowflakes why a hexagon shape? 3 of 3 The polar charge holds the molecules together As they crystallise, they create a hexagon lattice The hexagons then tesselate to make snow, snowflakes and ice
Snowflake activity - make a snowflake Step 1- Make a square Fold one corner of A4 paper Fold over one end of the paper Cut off at the fold
Snowflake activity - make a snowflake Step 2 Place the triangle in the position shown Fold the right side as shown Fold the left side as shown
Snowflake activity - make a snowflake Step 3 Cut the 2 folds on the bottom Draw a design on the triangle
Snowflake activity - make a snowflake Step 4 Cut out the pattern Unfold the paper to reveal your snowflake
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