Group members:

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• Group members
• Vivian Cheung(8)
• Serena Li(22)
• Kerry Lo(23)
• Sarah Ma(24)
• Jolie Wong (32)

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Introduction

• This year a man from China bought some eggs that
  can bounce after being cooked, which human think
  it is because of human artificial.
• But scientist found out that these eggs do not
  contain any chemicals.
• Eggs experienced cold weather and bumpy roads
  during their travel to the markets from farms on
  trucks.
• So we follow the procedure of the real bouncy
  eggs which is freezing, vibrating and boiling.

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Objectives

• To test whether bouncy egg is artificial or it is
  really made by human reaction.
• To see if the egg yolk really bounce.

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Procedures of making bouncy egg(1)

• Put the eggs into the freezer for 12 hours under
• -19 degree

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Procedures of Making Bouncy egg(2))

• Put the eggs into a vibrator and vibrate for 3
  hours

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Video(vibrating)
http//www.youtube.com/watch?v1ZiY1hRs3R8
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Procedures of Making Bouncy egg(3)

• Boil the eggs for 1 hour

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What are we going to test?

• 1.Difference on the appearance of normal
  egg(D)and bouncy egg(A).
• 2.How far can the egg yolk bounce after all the
  procedures??
• 3.Can the egg yolk bounce even if some of the
  procedures are missing?? e.gegg,C

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The procedure of egg A,B,C,D
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Differences on appearance
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With all the procedures done A (freezing,vibrating
and boiling)

• The difference of shape.
• The difference of color.
• The difference of softness.

Normal egg
Bouncy egg
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Difference on appearance(DB)
Normal egg
(freezingboiling)
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Difference on appearance(DC)
Normal egg
(vibrating boiling)
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Testing how far can it bounce

• After boiling the eggs, remove the egg white and
  obtain the egg yolks
• Throw the egg yolk towards the wall

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Video(egg A)
http//www.youtube.com/watch?v1ZiY1hRs3R8
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Video(egg D)
http//www.youtube.com/watch?v1ZiY1hRs3R8
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Result
furthest
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Result of egg A,B,C,D
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Conclusion1

• 1.Colour of bouncy egg after freezing ,and
  vibrating have lighter than normal egg.
• 2.After freezingvibrating, a bouncy egg yolk can
  bounce 60cm.
• 3.Egg yolk with freezing or vibration only can
  also bounce but with shorter distance, such as B
  and C.
• 4.We believed that the bouncy egg is formed by
  the mixing of egg white and egg yolk during
  freezing and vibrating

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Conclusion2
5.Since the egg white mix with the egg yolk ,the
egg yolks colour will change lighter and the
shape became weird and more bouncy after
freezing vibrating boiling. 6.The fake
eggs(bouncy egg) that some people thought is not
artificial. 7.But we dont think it is safe to
eat since the protein inside the egg might have
been change while freezing and vibrating
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tHe eNd