1. Walk-In Take out notebook, folder, agenda and pencil box.
Put away backpack.
Turn to the back, write Walk In and today’s date, copy the question and answer in sentences:
How do discoveries in science help us in everyday life? Give an example, if you can.

2. Possible Answers
Discoveries in science can help us with safety, medicine, health and growing food.
Many discoveries are developed further by engineers into things we use to make life easier (electronics, buildings, roads, materials, etc.).

3. Engineering Design Process

4. Watch this video clip about how engineers work.
Think about how it is the same and different from how scientists use the scientific method.

5. Comparing Scientists and Engineers
Follow along as we compare the Scientific Method and the Engineering Design Process, to see how each of these professionals works.

6. Three Important Words
Prototype – A simple model of the solution chosen, to be built and tried out, and improved each time it is repeated (an iteration).
Criteria – The things the solution must be able to do, also called SPECIFICATIONS.
Constraints – The limits the solution has to stay within, like size limits or limits of materials.

7. Example
Problem: Build a boat that can float for 20 minutes or longer before sinking.
Criteria: Must be at least 8 inches long, and must be rectangular in shape.
Constraints: Building materials include one piece of cardboard, 6 inches of masking tape, and two foam cups.
Prototype: The model that the engineer builds to try it out.
Iteration: After trying the prototype, the engineer makes improvements and tries again. Each trial is called an iteration.

8. Answer Key for Comparison Chart
Scientific Method Step
What Is Done
Engineering Design Process
Purpose
Ask a question
Define the problem
Research
Build background
Hypothesis
Educated guess
Specify requirements
Tell criteria and constraints
Materials and Procedure
Set up and do the experiment
Brainstorm and choose a solution
Come up with solutions, choose the best one
Do the experiment
Record your observations and data
Build a prototype and test it
A prototype is a simple model of your solution. Try it out.
Analyze data, figure out results
What did your experiment show?
Test your solution
Does the solution work? If not, make improvements and try again.
Conclusions
Was the hypothesis supported? Use what you learned to design a new experiment.
Do more iterations (make changes and test again).
Improve your solution and design with each iteration, until the best solution is found.
Communicate results
Tell people what was learned
Tell and show people the solution.
Answer Key for Comparison Chart