The length of a football field is 100 yards. When you compare geologic time (4.6 billion years) to the length of a football field, you will find that each yard on the field will equal 46 million years, and each 10-yard section will equal 460 million years. Use this information to complete the activity below.
Create a digital model of a football field. Starting at the left and moving forward in time, label the 10-yard lines in years. Using different colors, draw a horizontal line to mark the beginning and end of each of the following periods and eras [note that the years have been rounded up for this activity]:
• Cenozoic era (65 MYA to present)
• Cretaceous period (146‒65 MYA)
• Jurassic period (208‒146 MYA)
• Triassic period (245‒208 MYA)
• Paleozoic era (570‒245 MYA)
• Proterozoic era (2,500‒570 MYA)
• Archean era (3,800‒2,500 MYA)
• Hadean era (4,600‒3,800 MYA)
We can't draw anything in this forum.
What don't you understand about this assignment?
what are you supposed to do ??
To create a digital model of a football field and mark the different periods and eras, you can use various design or drawing software. Here's how you can approach it:
1. Open a design or drawing software of your choice. There are several options available such as Adobe Photoshop, Illustrator, or even online tools like Canva or Google Drawings.
2. Create a new blank canvas that resembles the shape and dimensions of a football field. Use the dimensions of a regulation football field, which is 100 yards long and 53.3 yards wide.
3. Divide the field into 10-yard sections. Use horizontal lines to create ten equal sections along the length of the field.
4. Now, we'll mark each yard on the field. Since each yard represents 46 million years, you can calculate the years corresponding to each yard. Start at 0 yards and move up to the full 100 yards.
- 0 yards: Present day (0 million years ago)
- 10 yards: 460 million years ago
- 20 yards: 920 million years ago
- ...
- 90 yards: 4,140 million years ago
- 100 yards: 4,600 million years ago
Label each yard line with the rounded-up year value. You can use text boxes or labels on the field to represent each year along the yard lines.
5. Using different colors, draw horizontal lines to mark the beginning and end of each period and era. Here are the timeframes for the different periods and eras:
- Cenozoic era: 65 million years ago to present
- Cretaceous period: 146 to 65 million years ago
- Jurassic period: 208 to 146 million years ago
- Triassic period: 245 to 208 million years ago
- Paleozoic era: 570 to 245 million years ago
- Proterozoic era: 2,500 to 570 million years ago
- Archean era: 3,800 to 2,500 million years ago
- Hadean era: 4,600 to 3,800 million years ago
Using different colors or shading, draw horizontal lines at the appropriate positions on the field to represent the beginning and end of each period and era.
Remember to use a scale that allows for clear visibility of the labels and lines on the digital model.