03 Models & Feedback Loops

Instructions

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10.  If you can't see them, please don't worry.  I won't count them against you.

Learning Target #1: Describe the use of models in science and how they can change

0.3

Scientific thinking changes based on new information and technology.

Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Question 2

01:52

Question 3

02:50

Question 4

03:50

0.3

Scientists use models to help visualize something that may be difficult to understand.

What tools can be used to create models?

Required

0.3

Models can change as new information and technology become available.

Below are 2 models.

The Ancient Greeks developed the __________ model, which placed the __________ at the center of the solar system.

However based on his observations, Copernicus proposed the __________ model, which placed the __________ at the center of the solar system.

Learning Target #2: Define negative and positive feedback loops and explain how they are different

Feedback loops help us understand cause and effect relationships. A feedback loop occurs when an action or event leads to a certain result, which then influences the original action or event. 

In a positive feedback loop, the effect of an action amplifies the original action, creating a self-reinforcing cycle.

In a negative feedback loop the effect of an action seeks to stabilize and balance a system or condition. 

Question 7

00:47

Question 8

01:12

Question 9

02:31

Question 10

02:47

Required

0.9

This image is a model of a negative feedback loop here on Earth (and Daisyworld).

Why is this considered a negative feedback loop?

HS-ESS2-2

Required

0.3

Consider this model of a positive feedback loop briefly mentioned at the end of the Daisyworld video.

Determine the effects of polar ice caps melting.

Why is the previous model of melting ice considered a positive feedback loop?

HS-ESS2-2

Required

0

03 Models & Feedback Loops

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Scientific thinking changes based on new information and technology.

Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Scientists use models to help visualize something that may be difficult to understand.

What tools can be used to create models?

This image is a model of a negative feedback loop here on Earth (and Daisyworld).

Why is this considered a negative feedback loop?

Why is the previous model of melting ice considered a positive feedback loop?

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Scientific thinking changes based on new information and technology.

Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Scientists use models to help visualize something that may be difficult to understand.

What tools can be used to create models?

This image is a model of a negative feedback loop here on Earth (and Daisyworld).

Why is this considered a negative feedback loop?

Why is the previous model of melting ice considered a positive feedback loop?

Self Assessment: Rate your mastery of each learning target.

When half of the parent atoms have become daughter atoms, that's called the half life of that element.

Which type of feedback loop does Daisyworld represent?

	1 - I need help!	2	3	4	5 - I could teach this to another student
Learning Target #1: Describe the use of models in science and how they can change
Learning Target #2: Define negative and positive feedback loops and explain how they are different

03 Models & Feedback Loops

03 Models & Feedback Loops

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Scientific thinking changes based on new information and technology.Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Scientists use models to help visualize something that may be difficult to understand.What tools can be used to create models?

This image is a model of a negative feedback loop here on Earth (and Daisyworld).Why is this considered a negative feedback loop?

Why is the previous model of melting ice considered a positive feedback loop?

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Please watch the class recording if you need help.

There have been technical issues with #2-4 & #7-10. If you can't see them, please don't worry. I won't count them against you.

Scientific thinking changes based on new information and technology.Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Scientists use models to help visualize something that may be difficult to understand.What tools can be used to create models?

This image is a model of a negative feedback loop here on Earth (and Daisyworld).Why is this considered a negative feedback loop?

Why is the previous model of melting ice considered a positive feedback loop?

Self Assessment: Rate your mastery of each learning target.

When half of the parent atoms have become daughter atoms, that's called the half life of that element.

Which type of feedback loop does Daisyworld represent?

Scientific thinking changes based on new information and technology.

Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Scientists use models to help visualize something that may be difficult to understand.

What tools can be used to create models?

This image is a model of a negative feedback loop here on Earth (and Daisyworld).

Why is this considered a negative feedback loop?

Scientific thinking changes based on new information and technology.

Before watching the video below to learn more about how scientists determined the age of the Earth, make a prediction: How old is the Earth?

Scientists use models to help visualize something that may be difficult to understand.

What tools can be used to create models?

This image is a model of a negative feedback loop here on Earth (and Daisyworld).

Why is this considered a negative feedback loop?