Bridge Project - this
is an in-class group project with a partner write-up (poster board). The goal
of the project is to enable you with the tools and experience to be successful
conducting your own science project. Topic focuses are: fair test, experiment
procedures, trials, data collection, data analysis, data representation, and
scientific method. The question we will be attempting to answer as a class
is: What bridge design can support the most weight? The most challenging aspect
of this experiment is collaborating and working with others. Groups who do
good work together usually make the best bridges. The next largest challenge
is the actual construction of your group's bridge. You will need to be patient,
careful, and attentive to detail. At the end of the project, every student
partner pair must turn in a poster display that outlines the scientific method
conducted in the class project. The poster will be an example of what your
8th Grade Science Project display will look like. The poster will be completed
Bridge Project Sequence:
- Initial Research - Conducted in your English class.
- Project Proposal
- Begin "Notebook"
- Initial Designs
- Group Collaboration
- Data Processing using MS Excel
- Finish "Notebook"
- Poster Presentations
- Only whole flat toothpicks may be used.
- Elmer's glue only. Also, you may not soak the toothpicks
- Toothpicks may only touch the cardboard in the 5cm
- Bridge must at least 6 cm clearance from the "water."
- Bridge must be one toothpick wide.
- Follow the carboard diagram for the base.
- Avoid excess glue. This adds undesired weight and
- Below is an image that shows how we will test the
strength of our bridge design. (The bucket will be larger and we will
use sand to add weight.)
- The bucket will slowly be filled with sand until the
bridge flexes 1.5cm or breaks.
- A scale will be used to weight the pencil, string,
bucket, and sand.
- Your bridge will also be weighed by a scale to determine
the weight to strength ratio (efficiency).
Building big bridges note and DVD - This is part of the research component. You will be using this
in your English teacher's class.
Bridge Project Proposal - This is same type of proposal you will need to complete for approval to
start your science project.
Bridge Project Rubric - This is for the overall poster presentation and your bridge.
Bridge Testing - List
all materials and procedures for testing (double-sided with data collection).
Bridge Data Collection - Table for observations and data (double-sided with testing).
Helpful Links for Research: