The Great Egg Drop: Investigating the Relationship Between Gravity, Mass, and Density
In this outdoor lab, students will make observations on the outcome of the inside contents of their half gallon milk/juice carton after it drops approximately 50 feet off the gym roof. Inside the carton are two raw eggs and other materials students choose to protect the eggs.
Students will write an inquiry report about what materials they used and why they were selected. They will also write concluding observations and results after the drop.
Students will gain an understanding as to how mass and density can affect the speed of a falling object, as well as, how mass and density can effect impact.
Words to review and/or learn: gravity, density, mass, speed, hypothesis, control and variable factors
Context for Use
Resource Type: Activities:Lab Activity
Grade Level: Middle (6-8)
Description and Teaching Materials
Materials needed: half gallon milk/juice carton, 2 raw eggs
Students will design a way in which two RAW eggs can be placed inside a half gallon carton and survive a 50' drop off the gym roof onto the ground. Students can put any additional materials INSIDE the carton with the two eggs. The carton cannot be cut or punctured or taped. (exception–the top lid of the carton may be taped shut)
Students will make observations of their carton to predict if their design ideas will be successful.
After the drop, students will evaluate their observations and results to make conclusions.
Teaching Notes and Tips
2. Eggs must be raw. Freezing eggs is not allowed.
3. Secure another staff person or custodian to drop the eggs off the roof. This person should announce whose carton is being dropped so the student can make observations.
4. Drop area should be on pavement, but a grass landing will work, too.
5. Have an area where students can open and analyze the results. (break or not break)
6. Have a good sized garbage bag/can to clean up.
This activity can also be done using one egg. Obviously using two eggs increases the difficulty of protecting the eggs.
7.I.B1-4 Designing scientific investigations
8.I.B.1-2 Understanding inquiry in systematic ways