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# Eggsronauts get Cracking!

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on 17 October 2018

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#### Transcript of Eggsronauts get Cracking!

Survive!
Problem:
Your eggsronaut (Humpty) needs to land safely on Mars. Mars has a thin atmosphere and rocky terrain. Humpty will need to survive a fall from the height of the Gym onto the parking lot and survive without cracking. Since it is very expensive to get anything from the Earth into space, your project should weigh as little as possible and be as small as possible
Step 1: Researching
Some people say that "experience is the best teacher," but that is wrong.

"Other people's experience is the best teacher."
It is quicker, and dead-ends are found much sooner. Your time is valuable so seeing what others have done and improving on their thinking is a much more efficient model.
Models:
Martian Eggsronauts get Cracking!
Blueprints:
All eggineers must get their plans approved before they begin construction on final projects!
Using graph paper, accurately diagram your prototype landing craft.
come up with a cool project name for a title
name and date
use a ruler
label all parts
consider drawing from more than one angle (top, side)
use a scale (1/2 size?, 1/4 size?)
Take completed plans and meet with the Deputy NASA Administrator for approval.
Be prepared to explain your plans.
What is slowing down the craft?
Where is the energy going?
How much will your supplies weigh?
Plans are rarely perfect the first time, so expect feedback and corrections may be necessary.
4.) Diagram is neat, tidy, accurate and
to

scale
.
3.) Diagram is neat, tidy, and accurate.
2.) Diagram may be messy in places or contain some inaccuracies.
1.) Diagram is messy and contains inaccuracies.

Knowledge Levels:
4.) Student can independently explain their strategies for slowing their project using scientific language.
3.)Student can independently explain their strategies for slowing their project.
2.)Student needs prompting to explain their strategy(ies) for slowing their project.
1.) Student cannot explain their method of slowing their project.
Construction:
At school during extra work periods or at home.
Must meet project constraints.
All projects should have a refined look to them.

Launch!
All Eggstronauts will be thrown from a great height to simulate Mars entry.
Date: TBA
Did you Survive?
Egg survival:
4.) Egg remains in project and has no cracks.
3.) Egg remains in the project and egg is has some cracks in the shell but nothing is leaking out.
2.) Egg might have come out of the project AND/OR the egg is leaking but not totally broken.
1.) Egg came totally out of the project OR the egg is severely broken to total smashed

The Overall STEM Learning Plan
What is the problem?

What are the parameters?

What are the constraints?
Constraints:
Under 30cm in diameter (before deployment)
No motors
eggstronaut safely inside spacecraft
Parameters
The apparatus may be constructed of any material except metal, glass or other shatterable material (for safety reasons).
The apparatus (without the egg) shall not exceed 300 grams in mass.
The apparatus must fit completely inside of a 30 cm x 30 cm x 30 cm box.
The apparatus must freefall without contacting team members, other persons or objects.
Containers must be designed so that the egg may be easily checked after the drop test.
The egg must stay inside the apparatus throughout the drop test.
Testing:
draw rough ideas
Test them on a small scale
build quick mini-models
Degrees of Difficulty:
Mass of Container:
4.) Between 0-100g
3.) Between 100-200g
2:) Between 200-300g
1:) Above 300g
Parachutes:
4.) none.
3.) total area less than 400cm2
2.) total area less than 900cm2
1.) area larger than 900cm2
REFLECT & REDESIGN:
Write a Three Paragraph Response:
What went well? What were your successes?
What didn't go so well? What would you change on your design for next time?
What did you learn from the other students' designs?
Student Example #1
Student Example #3
Student Example #2
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