AS 6.4 TE 2.3-2.4

Poll

Read the claims below and decide which one you think is more likely to be correct for the Investigation Question:

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Which claim explains why molecules change speed according to energy transfer between molecules?

• Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

• Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Warm-Up

Test your claim in the Simulation

1. Open the Thermal Energy Simulation.

2. Gather evidence about the claims using the simulator.

3. Describe your evidence on the next page.

Open Ended

What evidence did you gather evidence about these claims using the Thermal Energy Simulation?

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Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Multiple Choice

What is the main purpose of using the simulation in Activity 2?

• To observe how molecules interact with each other.

• To add or remove energy from samples and observe changes in kinetic energy and energy transfer.

• To measure the temperature of different samples.

• To compare the color of different samples.

TE #2.3, Activity 2

Simulating Temperature Change

1. Launch the Sim on one partner’s device. If you each have a device, display these instructions on the other device.

2. Add two samples of the same size.

3. In Run, press the View Kinetic Energy toggle and the View Energy Transfer toggle.

4. Press the + or - buttons to add or remove energy so that one sample is warmer and the other sample is colder.

5. Drag the two samples together and observe what happens.

6. Open Analyze. Replay the Sim and observe what happens on the graph after the two samples are dragged together.

7. Describe the evidence that you observe on the next page.

Open Ended

What evidence do you observe in the Thermal Energy Simulation for the claims?

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Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Poll

Based on your evidence from the Thermal Energy Simulation, which claim is best supported?

• Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

• Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Why do molecules change speed?

• Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

• Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Annotate for evidence

Re-read part of the article “How Air Conditioners Make Cities Hotter.”

1. Start at Paragraphs 5-7.

2. Blue highlight text that could help you answer the Investigation Question.

Re-reading the article

TE #2.3, Activity 3

Open Ended

What evidence did you gather from the article “How Air Conditioners Make Cities Hotter” that relates to the investigation question and the claims?

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Copy/paste the best text evidence from the article of restate it in your own words.

Poll

Based on your evidence from the article “How Air Conditioners Make Cities Hotter”, which claim is best supported?

• Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

• Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Poll

Based on the evidence that you collected from the Sim and the article...

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Which claim explains why molecules change speed according to energy transfer between molecules?

• Claim 1: Molecules speed up when energy is created and slow down when energy is destroyed.

• Claim 2: Molecules speed up when they get energy from other molecules and slow down when they give energy to other molecules.

Multiple Choice

What happens to kinetic energy when two things are in contact and their molecules collide?

• It transfers from the faster-moving molecules to the slower-moving molecules.

• It disappears completely.

• It stays only with the faster-moving molecules.

• It transfers from the slower-moving molecules to the faster-moving molecules.

Fill in the Blanks

Multiple Choice

Which of the following statements about transfer is correct?

• Transfer means to move from one object to another or one place to another.

• Transfer means to stay in the same place.

• Transfer means to disappear.

• Transfer means to increase in size.

Drag and Drop

Drag and drop the words that best complete the following statement.

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Energy is not ​

Placeholder

or ​

Placeholder

. Therefore, as energy ​

Placeholder

, it increases in one part of the system as it ​

Placeholder

in another part of the system.

Drag these tiles and drop them in the correct blank above

created

destroyed

transfers

decreases

Open Ended

What does the graph tell you about the temperature of Sample A over time?

TE #2.4, Activity 2

Energy Transfer in the Sim

Follow the directions for this activity and complete your work for it on this Amplify Science page.

TE #2.4, Activity 4

Reflecting on Stability and Change

Follow the directions for this activity and complete your work for it on. this Amplify Science page