Dunneback-Science 2020-2021 Assignments

You may complete this extra credit opportunity if you have NO missing assignments.

Choose one of the following options to complete:

You were in a tug-of-war contest which your team won. Write a letter to your friend that tells why your team won the contest.

Imagine that you are a baseball or soccer ball, and are being used in a game. Write a story that tells about the different forces you feel during the game. Remember that any time an object’s motion changes, there must be some kind of force acting on it.

Draw an illustration of a rollercoaster track and label where potential and kinetic energy would be found.

Draw an illustration of a car and label the various types of energy that can be found. Some types of energy are sound, light, electrical, magnetic, mechanical.

Write a scientific argument that addresses this question: Why did Vehicle 2 fall off the cliff in Claire's test of the collision scene, but Vehicle 2 did not fall off the cliff in the film Iceworld Revenge?

Claim 1: The vehicles in Iceworld Revenge had different masses; in Claire’s test, the vehicles had the same mass.
Claim 2: The friction of the surface that was used in Iceworld Revenge was different from the friction of the surface in Claire’s test.
State your claim. Use evidence to support your claim, and then explain how the evidence supports your claim. Use the section at the end of the argument to explain why another claim is not as strong as the one you chose.

Explain why you think the claim you chose is stronger than the other claims that were offered. Be sure to support your thinking with evidence.

PART ONE:

For each evidence card, decide which claim you think it is supporting and if you think the evidence is high quality, medium quality, or low quality.

PART TWO:
Answer the following questions

Evidence Card A:
What does it mean that Vehicle 1 slowed down?
Can this help you infer anything about the friction of the surface or the mass of the vehicle?

Evidence Card B:
What can you infer from the fact that Vehicle 2 moves after the collision?
What can you infer from the fact that it moves only a little?
Could a difference in Vehicle 2’s mass affect how much it moves? Why or why not?

Evidence Card C:
How would the velocities of the vehicles be different if the surface was different?
How does friction affect the velocity of a moving object?

Evidence Card D:
Is reversing direction a bigger or smaller change in velocity than coming to a stop?
Could a difference in friction cause this different kind of velocity change after the collision?
Could a difference in mass cause this different kind of velocity change after the collision?

Evidence Card E:
If the two vehicles were different masses in Iceworld Revenge, which material might have been used for Vehicle 1? Vehicle 2?
What evidence makes you think that?

Write two paragraphs to Dr. Gonzalez, use evidence to explain what happened during the missing seconds and compare the pod’s motion to the space station's motion after the collision.

Use your completed Reasoning Tool, model, and suggested words and phrases to help with your explanations. We completed two reasoning tools in 3.4 on Friday. Please use them!

PARAGRAPH ONE

What happened to the pod during those seconds when communication was lost?

PARAGRAPH TWO

After the collision, how does the pod’s motion compare to the motion of the space station?

Word Bank

cause collision effect
exert force mass
strength velocity


Cause-and-Effect Words and Phrases

If . . . , then Because
As a result, This led to . . .
When Therefore,
Next,

Explain the events that would cause these changes in velocity. For each claim, describe the thruster force and how that would result in the pod moving away from the station.

Claim 1: The thrusters caused the pod to move in the opposite direction.
Claim 2: The thrusters only slowed the pod, it didn’t stop; the pod hit the space station, which made it bounce and move in the opposite direction.

Use the word bank, cause-and-effect words and phrases, and your two Modeling Tool diagrams, if they are helpful.

Word Bank

force exert velocity
cause effect

Cause-and-Effect Words and Phrases

If . . . , then When As a result, This led to . . .
Because Therefore, Next,

Claim 1: Firing the thrusters would have caused the pod to move in the opposite direction if . . .

Claim 2: Firing the thrusters only slowed the pod, it didn’t stop; the pod hit the space station, which made it bounce and move in the opposite direction. This would happen if . . .

Write an argument that explains to the school principal why you think the Ed-You-Swivel chairs will or will not help the school save money on energy costs. You can use one or more of the Scientific Argumentation Sentence Starters as you write. Include the following:
- Introduction to the problem
- The claim you selected
- Evidence (cite the card)
- Reasoning!

Claim 1: The Ed-You-Swivel chairs will capture enough energy to power the school’s small electronics.
Claim 2: The Ed-You-Swivel chairs will not capture enough energy to power the school’s small electronics.
an explanation of how the Ed-You-Swivel works, evidence from the Reasoning Tool that supports your claim, and vocabulary from the Word Bank.

Word Bank:
kinetic energy
evidence
convert
transfer
potential energy
harness

Evidence Card A: A commercial paid for by Ed-You-Energy says that the Ed-You-Swivel “creates” enough energy to power an entire school.

Evidence Card B: Data from the electric company shows that the school uses about 15 million (15,000,000) joules of energy every hour.

Evidence Card C: A magazine called Future-Tech Today published an article about the Ed-You-Swivel. The article said that after a few minutes of use, the product would be able to fully charge one tablet. Future-Tech Today also published an article about a car that “makes more energy than it uses.”

Evidence Card D: Engineers at Product Testing Lab, Inc. found that the Ed-You-Swivel harnesses 4,000 joules in one day of typical use. It would take an Ed-You-Swivel 20 days to charge one tablet. Product Testing Lab, Inc. is a company used by many businesses, schools, and government agencies to make choices about what to buy.

Evidence Card E: Your friend said that his dad uses the Ed-You-Swivel at work, and it captures enough energy to charge his cell phone.

Evidence Card F: Someone who knows the owner of a company that sells basketballs that harness human energy says that the Ed-You-Swivel will not capture enough energy to charge a cell phone, even if it is used for an entire day.

Evidence Card G: For hundreds of years, scientists have observed that energy cannot be created. If something has energy, the energy must have been transferred from something else.

Evidence Card H: The Ed-You-Swivel developers state that the product can save schools money.

Write a report to the rescue team explaining how your energy system works. Make sure to explain how your system captures energy from rescue workers’ bodies to power equipment during rescue missions. Try to use the words in the Word Bank above.

Word Bank
kinetic energy potential energy transfer convert generator