EDP & Egg Drop

EDP REVIEW:

ASK, IMAGINE, PLAN, CREATE, COMMUNICATE

The Egg Drop project is a highly-versatile activity that used to introduce students to physics, materials science, and fluid dynamics. Students will construct a device to 'save' an egg from a meter drop, and as the eggs survive, the height increases. Additional components to the activity include timing the falls to calculate the average speed, measuring the deformations of the devices after the drop, and data analysis to compare which materials worked best overall.

Egg drop devices simulate parachutes and other similar features seen in nature, such as the helicopter seeds that are dropped from some trees. The process of slowing descent to resist the force of gravity has been used in a number of instances in history, and continues to be an important science – especially currently around emergency aid and transportation of goods to inaccessible areas.

This group project will consist of five main parts and each of your group members will pick a section to be the leader of. In your section, you are in charge of making the final decision, writing information, presenting, etc.

1. ASK-

Students need to create a structure that protects a raw egg from dropping at (3) various heights.

What are the heights? How many tests do you get? What materials will you (re)use?

Can your egg be easily checked for success and redesign?

2. IMAGINE-

2a. WEBQUEST to expand your existing knowledge. Each team needs ONE PACKET from the Engineering II basket to fill out as you work through your web quest.

Turn in this webquest to the teacher, then move on.

2b. Start doing research! Look into devices used to protect people in crashes and falls. Where did the inspiration for these devices come from? In your teams, take notes about each device and start making some sketches to reference in your brainstorms.

2c. Each team member needs to come up with 3-5 different ideas/brainstorms to solve the given problem. Once sketches are complete, compare your ideas with your teammates. Discuss the designs and analyze the PROs and CONs. The more designs, the better the options your team will have.

DESIGN CRITERIA:

Design is smaller than 31 cm²

Design weight is under 500 g INCLUDING egg

Design is made completely of household materials

No strings, parachutes, or other attachments are present to slow the release

It is a truly unique design; it is not **copied from any other source

No gases (ie Helium) other than oxygen are used in the design

No propulsion systems are used in the design

**A design can be used as a reference, but cannot be recreated exactly- it must be changed

3. PLAN-

3a. Choose the best design (or combo design from your group) and bring a final sketch to the teacher for a discussion about your design choices.

3b. Create a full list of every material that your group will need to gather in order to create your design.

I will have materials available for you to use or you may bring in items from home. You must use household items to construct your design. Possible materials may include straws, cardboard, cotton balls, toilet paper, grocery bags, tape, balloons, etc. Do not use premade containers. There should be some form of construction involved. Your device should not be larger than 31 cubic cm.

3c. Using the drawing paper provided in the Engineering II basket, create an orthographic final plan showing the top and side view of your design.

3d. Bring your initial sketch, your materials list, and final design to the teacher for a check off.

Have the teacher check this, then move on.

4. CREATE- **Your device must be constructed within 2 school days.**

4a. Gather and collect all supplies for your construction process.

4b. As a team, put your device together. Be sure to be conducting mini-tests for quality along the way.

5. TEST/IMPROVE- There will be 3 class test heights.

Each test will need to be recorded, along with the time of the fall to determine velocity of the drop.

5a. The first test will be at a height of 1m. Your egg MUST survive this test to pass.

Improve as needed. Record all data in your notebook for later analysis.

5b. The second test will be at a height of 3m. (From 1st stair landing in rainforest area)

Improve as needed. Record all data in your notebook for later analysis.

5c. The third, and last test, will be from the 2nd story balcony in the rainforest area of the school- 5.5m.

Record all data in your notebook for later analysis.

5d. IF your design has survived this far, it can be dropped off the ROOF!

The group(s) that survive the ROOF drop will recieve extra credit and bragging rights.

6. Communicating Results-

6a. Each student will answer reflection questions in Google Classroom independently - this is not a group activity!

6b. Individually, create a presentation that will give the general layout of your project's story and your overall findings. Include any pictures, graphs, or videos that support your information and findings.

6c. Post your final multimedia presentation on Google Classroom so that we can share your findings with the community. It is important that you put your best effort into this project.

Your best efforts will make our community proud! Good luck with your mission!

All materials and final analysis are due upon completion for presentation on:

the last Friday of this unit