Transcript Egg Drop Project - Pearsall Intermediate School

Egg Drop
Project
Group 1—Michael Palmer, Kiondria Fountain,
Nia Riddick, Brandon Bacchus
Group 2—Christopher McLaurin, Whitney Gammon,
Joshua Rainey
Group 3—Johnnie Rainey, Adia Hughes, L’Allegro Smith
Background
To construct a structure capable of
protecting an egg dropped from a
significant height
Research: Car Crashes
 While researching we looked at car crashes – good and
bad.
 In the better crashes the people were wearing seat belts
,the airbags worked and they had minor injuries.
 In the bad crashes there were no airbags people were
thrown from cars and the injuries were even fatal at
times.
Group 1
Research: Parachutes
 The Parachute works by
creating drag on a load or
person falling through the
air.
 It does this by presenting a
large surface area in the
direction that the load is
moving (downwards) &
causing enough air
resistance to slow the rate
of speed down.
 To the point where the
person or load can
eventually touch down on
the ground unharmed.
Group 2
Research: Mars Rover
 The Mars Rover Spacecraft
was the basic blueprint for the
design of our egg drop. We
were inspired by:
 the cushioning (airbags all
around)
 structure (small)
 lift (parachute)
 With the materials given we
produced a model that we
hoped would withstand the
force and impact of the parking
lot
Group 3
Design Considerations
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Layout of the structure
Making the structure firm
Cushioning the egg
Slowing down the structure
Length of the fall
Materials
Cushioning the fall of the structure
Materials that we used
 Straws
 Cardboard
 Paperclips
 Rubber bands
 Tape
 Balloons
 Grocery bag
 Popsicle sticks
 Glue
Testing Analysis
 Want to find speed project falls
 Know
– speed = distance/time
– Can measure time with stopwatch
 Need to find height of window
–
–
–
–
Drop water balloons to calculate height
H=(1/2)*g*t2
Water balloons took 1.68sec to land
H=45 feet
 Speed of water balloon = 45ft / 1.68sec =
27.8 ft/s = 18.9mph
Everyone's Test Results
Groups
Water
Balloon
Group 1
Group 2
Group 3
Average
Time
1.68
seconds
2.24
seconds
2.04
seconds
1.92
seconds
Velocity
Velocity
(in feet per second)
(in miles per hour)
27.8 ft/s
19mph
20.4 ft/s
13.84 mph
22.3 ft/s
15.20 mph
23.3 ft/s
15.75 mph
Project Design—Group 1
 We made the cardboard into a triangular prism.
 Then we put rubber bands around it.
 We put the rubber bands in a star shape inside the
cup.
 Then we put three more near the
top with two straws in a “X” shape
 Next we put the cup inside of the
cardboard and attached a plastic
bag to the straws as a parachute
 Lastly we surrounded the cardboard in balloons and put one on
top of the cup.
Our Outcome
 Our egg-drop was a success.
 The parachute caught the wind and slowed the
structure down.
 The balloons cushioned the outside.
 The rubber bands in the cup secured the egg from
bouncing around
 The balloon on the top of the
cup served as a lid so the egg
wouldn't fall out.
Project Design—Group 2
 We got a box and put a cup in it.
 We made a web out of rubber bands on top and
bottom to keep the egg from bouncing up and
down in the cup.
 After that we put two straws on top of each other
on the inside of the cup for cushion, and to keep
it moving side to side.
 Then we put popsicle sticks on
the lining of the bag to keep the
bag open.
 Next we attach the bag to straws
to make a Parachute.
Project Design(cont.)
 In our egg drop our rubber bands acted
as a seatbelt for the egg.
 The cup and the cardboard acted as the
outside and inside structure.
 The balloons served as a air bag for
when it falls
The Results
 Our egg did not break we feel we should have not
made any changes.
Why It Didn’t Break
 It didn’t break because we had balloons around
the whole structure and we had a web of rubber
bands on top and bottom of the egg. We also line
the inside of the cup with straws and we made a
parachute. We lined the inside of the parachute
with popsicle sticks to keep the bag open. We feel
that our project was perfect and it was perfect.
Project Design—Group 3
 Our group decided to place the egg inside of a
cardboard box
 We placed popsicle sticks on the inside and the
outside of the structure
 then we glued pieces of cut up straws in the box
to cushion the egg (after stretching them)
 Then we made a web of rubber bands on top to
keep the egg from smashing into the cardboard,
and placed on the lid
 Then balloons were placed on the out side of the
structure to cushion the fall and placed a plastic
bag on the bottom to act as a parachute and
slow down the structures fall
Conclusion
 According to the data our egg needed more
cushion and the parachute needed to be more
spaced out to create lift. In conclusion the egg
cracked open and the yolk seeped out. Fortunately
the structure survived the fall.