Egg Drop Project Group 1—Michael Palmer, Kiondria Fountain, Nia Riddick, Brandon Bacchus Nia Riddick, Brandon Bacchus Group 2—Christopher McLaurin, Whitney Gammon, Joshua Rainey Group 3— Johnnie Rainey, Adia Hughes, L’Allegro Smith

BackgroundBackground To construct a structure capable of protecting an egg dropped from a significant height

Group 1 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 2  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. Research: Parachutes

Group 3 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

Design Considerations  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 Straws Cardboard Cardboard Paperclips Paperclips Rubber bands Rubber bands Tape Tape Balloons Balloons Grocery bag Grocery bag Popsicle sticks Popsicle sticks Glue 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*t 2 –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 Average Time Velocity (in feet per second) Velocity (in miles per hour) Water Balloon 1.68 seconds 27.8 ft/s 19mph Group seconds 20.4 ft/s mph Group seconds 22.3 ft/s mph Group seconds 23.3 ft/s 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 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 card- board 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 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.  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

ConclusionConclusion  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.