WeldEd:
Engineering Your Future
This page displays a summary of all 12 engineering workshops and lets you easily and quickly search based on concepts, process skills, and/or student objectives.
WORKSHOPS
1. Understanding Stress & Load
After reading descriptions of three types of stress and three kinds of load, students label stress and load points on diagrams of a bike, a basketball backboard and a canoe.
Student Objectives:
- Identify three types of stress: tensile, compression and shearing.
- Identify three kinds of load: static, impact and repetitive.
2. Resisting Force
Students predict and experiment with wood boards to determine if the quality of one property predicts the quality of another property in a given material.
Student Objectives:
- Test materials and conclude that the characteristic of one property in a material does not necessarily indicate the characteristic of another.
3. Differing Stress Resistance of Metals
Students predict and experiment to determine if brass and aluminum have the same resistance to impact loads and if a metal that has a high resistance to impact loads also has a high resistance to repetitive loads.
Student Objectives:
- Test materials and conclude that the characteristic of one property in a material does not necessarily indicate the characteristic of another.
4. Testing Properties
After reading descriptions of tests used by professionals to determine the properties of materials, students label diagrams of testing equipment and compare the tests they have done to the professional tests.
Student Objectives:
- Identify similarities in tests from workshops 2 and 3 with tests engineers make.
5. Joining Materials
Students label diagrams of a hammer, cooking pan and shovel as being of one-piece or joined-pieces construction. They apply information from previous workshops to label points of stress.
Student Objectives:
- Identify characteristics of objects with and without joints.
- Identify appropriate means of joining pieces depending on materials and intended use.
6. Modeling and Building to Specification
Students follow specifications for building balsa wood models of the five basic joints and check adherence to specifications on the models built by others.
Student Objectives:
- Identify the five basic types of joints.
- Follow working drawings to create models built to specification.
- Check measurements on models for adherence to specifications.
7. Stress Throughout a Structure
Students demonstrate that stress applied directly to one part of a structure can affect other parts.
Student Objectives:
- Demonstrate that force acting on one part of a structure can cause stress in other parts.
8. Relating Design to Stress
Students predict and experiment to determine if plain, notched and drilled slats vary in their ability to withstand tensile stress.
Student Objectives:
- Demonstrate that altering the shape and structure of an object can alter its resistance to stress.
- Gather and analyze experimental data.
9. Movement of Heat Through Materials
Students predict and experiment to rank aluminum, copper, steel, brass and glass according to efficiency in conducting heat.
Student Objectives:
- Demonstrate that not all metals have the same capacity to conduct heat.
10. Welding to Join
Students use candles and paraffin blocks to model fusion welding and solid-state bonding.
Student Objectives:
- Identify the characteristics of fusion welding and deformation bonding.
- Model fusion welding and deformation bonding.
11. Specific Heat and Melting
Students predict and experiment to rank aluminum, copper, and steel according to their specific heats.
Student Objectives:
- Define specific heat.
- Demonstrate differences in specific heats of aluminum, copper and steel.
12. Teamwork: The Key to Technology
Student teams plan, organize, carry out and report the results of an investigation to determine the ranking of the joint models made in Workshop 6 for ability to resist compression stress and tensile stress.
Student Objectives:
- Work effectively as a team to plan, organize, carry out and report the results of a scientific inquiry.