Embedded Files
Pen or pencil
Pen or pencil
Lab Notebook
Lab Notebook
Lab Seats
Lab Seats
Look at the following checklist and write down what you still need to complete:
Look at the following checklist and write down what you still need to complete:
- Did you label all the materials in your diagram (step 5)?
- Did you label all the materials in your diagram (step 5)?
- Write a test procedure in step 6
- Write a test procedure in step 6
- Create a data table and graph for step 7
- Create a data table and graph for step 7
- Prepare for your presentation to the class tomorrow in step 8
- Prepare for your presentation to the class tomorrow in step 8
Pen or pencil
Pen or pencil
Lab Notebook
Lab Notebook
Lab Seats
Lab Seats
Tomorrow is the last day to complete this lab. Look at the steps of the engineering process and set a goal for your group.
Tomorrow is the last day to complete this lab. Look at the steps of the engineering process and set a goal for your group.
What step do you plan to complete today to be on track to finish all 8 steps by tomorrow?
What step do you plan to complete today to be on track to finish all 8 steps by tomorrow?
Pen or pencil
Pen or pencil
Lab Notebook
Lab Notebook
Lab Seats
Lab Seats
Thinking about the documentary:
Thinking about the documentary:
What are some of the impacts of climate change on the planet?
What are some of the impacts of climate change on the planet?
OR
OR
Why do you think climate change is such a difficult challenge for engineers to find solutions to?
Why do you think climate change is such a difficult challenge for engineers to find solutions to?
OR
OR
Do you think human activities are the cause of global warming?
Do you think human activities are the cause of global warming?
I can engineer a greenhouse that will allow food to be grown in cold climates all year long.
I can engineer a greenhouse that will allow food to be grown in cold climates all year long.
This means I will design and test a prototype greenhouse.
This means I will design and test a prototype greenhouse.
This means I will evaluate my results and determine whether my design needs refining or replication.
This means I will evaluate my results and determine whether my design needs refining or replication.
This means I will share my design and results in a presentation to the class.
This means I will share my design and results in a presentation to the class.
TO PRINT: tables and graphs scenario
Engineering Greenhouses
Engineering Greenhouses
What does growing food have to do with global warming?
What does growing food have to do with global warming?
The Scenario
The Scenario
Maria lives in Minnesota. (What do you think the weather is like in MN?) Winters in Minnesota are very cold with below-freezing temperatures. One year, 432 cm (170 inches) of snow fell in the northern part of the state. In the summer, Maria keeps a greenhouse to grow vegetables for her community; however, the size of her community is growing and Maria needs to start growing vegetables year-round, even in the winter. To do this, Maria needs to build a deep-winter greenhouse where plants will grow even during the cold winter months. The plants Maria needs to grow will only survive if the temperatures within the greenhouse reach 30 degrees Celsius (or above) within the first 10 minutes of sun. The plants must also have access to plenty of sunlight. Like many farmers, Maria doesn't have a lot of money. She can only use everyday materials she has on her property to build her greenhouse, and the cost must be less than $0.50.
Maria lives in Minnesota. (What do you think the weather is like in MN?) Winters in Minnesota are very cold with below-freezing temperatures. One year, 432 cm (170 inches) of snow fell in the northern part of the state. In the summer, Maria keeps a greenhouse to grow vegetables for her community; however, the size of her community is growing and Maria needs to start growing vegetables year-round, even in the winter. To do this, Maria needs to build a deep-winter greenhouse where plants will grow even during the cold winter months. The plants Maria needs to grow will only survive if the temperatures within the greenhouse reach 30 degrees Celsius (or above) within the first 10 minutes of sun. The plants must also have access to plenty of sunlight. Like many farmers, Maria doesn't have a lot of money. She can only use everyday materials she has on her property to build her greenhouse, and the cost must be less than $0.50.
STEP 1: The Problem
STEP 1: The Problem
Create a new entry in your lab notebook (next blank page, choose a title). Under "STEP 1: PROBLEM," define the problem:
Create a new entry in your lab notebook (next blank page, choose a title). Under "STEP 1: PROBLEM," define the problem:
1. The Problem: what is the problem you are going to solve?
1. The Problem: what is the problem you are going to solve?
2. The Criteria: what does your solution need to be able to do? (Be specific and use the numbers from the scenario)
2. The Criteria: what does your solution need to be able to do? (Be specific and use the numbers from the scenario)
3. The Constraints: what are the limits on your design?
3. The Constraints: what are the limits on your design?
STEP 2: Research
STEP 2: Research
Identify 3 facts that are relevant to your problem. You can use:
Identify 3 facts that are relevant to your problem. You can use:
- Facts from the documentary
- Facts from the documentary
- Facts from the lab manual
- Facts from the lab manual
- Other things you know about climate change or greenhouses
- Other things you know about climate change or greenhouses
STEP 3: Materials Survey
STEP 3: Materials Survey
Go survey the materials Maria has available on her property. Fill out the materials table.
Go survey the materials Maria has available on her property. Fill out the materials table.
For assembly and testing, you also have access to:
- scissors
- rulers
- tape
- lamps for testing
- thermometers
- stopwatches
STEP 4: Possible Solutions
STEP 4: Possible Solutions
With your group, identify at least 3 possible solutions to your problem using the given materials. Write a brief description of each one.
With your group, identify at least 3 possible solutions to your problem using the given materials. Write a brief description of each one.
STEP 5: Diagram and Build Prototypes
STEP 5: Diagram and Build Prototypes
Choose a design to build for your prototype. Before building, keep the following in mind:
Choose a design to build for your prototype. Before building, keep the following in mind:
1. Light must be able to reach inside of your greenhouse. For example, you cannot cover your entire greenhouse with black paper.
1. Light must be able to reach inside of your greenhouse. For example, you cannot cover your entire greenhouse with black paper.
2. Prototypes cannot be filled with water. Water can only be stored in 1 large or 2 small plastic cups inside the greenhouse.
2. Prototypes cannot be filled with water. Water can only be stored in 1 large or 2 small plastic cups inside the greenhouse.
3. There must be room for plants in your greenhouse. At 10cm by 15cm area must be clear of materials.
3. There must be room for plants in your greenhouse. At 10cm by 15cm area must be clear of materials.
Draw a diagram of your prototype. Be sure to label all the materials.
Draw a diagram of your prototype. Be sure to label all the materials.
STEP 6: Test
STEP 6: Test
Write a procedure for testing your design. Remember to include:
Write a procedure for testing your design. Remember to include:
Where will the lamp be placed?
Where will the lamp be placed?
Where and how will the thermometer be placed?
Where and how will the thermometer be placed?
How will temperature data be collected?
How will temperature data be collected?
STEP 7: Data
STEP 7: Data
Fill out data table for each prototype. Once your prototype reaches 30 degrees within 10 minutes, you can stop refining.
Fill out data table for each prototype. Once your prototype reaches 30 degrees within 10 minutes, you can stop refining.
Create a line graph to represent your data. This should be similar to the graph you created for the "Sunlight Angles" lab if you need a reference.
Create a line graph to represent your data. This should be similar to the graph you created for the "Sunlight Angles" lab if you need a reference.
STEP 8: Presentation
STEP 8: Presentation
In your presentation, be prepared to share:
In your presentation, be prepared to share:
What were the details of your successful design?
What were the details of your successful design?
Where will the plants go in your design?
Where will the plants go in your design?
Share your data. What temperatures did you reach? How quickly did you reach it?
Share your data. What temperatures did you reach? How quickly did you reach it?
How much does your prototype cost?
How much does your prototype cost?
What challenges did your group have?
What challenges did your group have?
What do you think were the most successful or important parts of your design?
What do you think were the most successful or important parts of your design?
Homework
Homework
No homework this week (as long as you get your work done in class). Happy holidays!
No homework this week (as long as you get your work done in class). Happy holidays!
Debrief
Debrief
I can engineer a greenhouse that will allow food to be grown in cold climates all year long.
I can engineer a greenhouse that will allow food to be grown in cold climates all year long.
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