What evidence supports a Late Heavy Bombardment (~4.0 BYA)?
If the Moon and Mars show many ancient craters, what should we infer about Earth?
Where is Earthโs evidenceโand why might it be missing from the surface?
Class Consensus Discussion (Structure)
Select groups to share; a peer restates each share.
Class asks clarifying questions.
Confer in table groups; then whole-class consensus.
Focus:
Link evidence to claims with clear scientific reasoning.
Make ideas public and visible; elevate accurate explanations.
Key Points to Make Public
Oldest minerals across Earth/Moon/Mars/other objects โ 4.5 BYA โ co-formation from the same dust disk.
The Late Heavy Bombardment (~4.0 BYA) evidenced by dated Moon melt rocks.
Inner bodies (Mars, Venus) show craters; proximity implies Earth was bombarded too.
Earthโs surface has changed (hydrologic + geologic processes), which can erase or alter ancient crater evidence.
Summary Task (Individual)
Write a short explanation: โWhat was the early solar system like, and what does the evidence suggest about Earthโs impact history?โ
Include:
Evidence (ages, isotopes, melt rock dates).
Reasoning (why this evidence supports your claim).
Clarify where Earthโs surface record may be incomplete and why.
2025.11.18 Earth Science
of the : If everyone in your family was a zoo animal, which animal would they all be?
Agenda
Do Now: Open Google Maps
Canvas -> Unit 2 -> Resources -> Engage Links -> Open each in a new tab
Engage Crater Observations & Share Out
Start Radioactive dating
Goals
Make observations and inferences about crater impacts on different planetary objects
Upcoming
Engage: Craters and Earth's History
Essential Questions
Why do we see so many craters on the Moon and Mars, but not on Earth?
How often have asteroids struck Earth in the past?
Investigative Phenomenon
On Earth, about 128 impact craters have been discovered.
On Mars, there are >300,000.
On the Moon, there are >1,000,000.
What do these differences suggest about stability and change in the solar system?
Todayโs Goal
Examine images of Mars, the Moon, and Earth.
Identify patterns in crater presence and appearance.
Develop initial claims for why Earth shows fewer craters despite similar ages of oldest minerals.
What Youโll Do
Individually complete a SeeโThinkโWonder using the handout:
See: What do you observe in the crater images for Mars, Moon, Earth?
Think: What patterns or ideas do these observations make you think of?
Wonder: What questions do you have about crater differences?
In groups, discuss and agree on one important idea to share.
Use the Domino Discover routine to surface class-wide trends.
SeeโThinkโWonder: Guidance
See:
Count and compare crater density, size, depth, and distribution.
Note surface features (erosion, water, atmosphere indicators).
Think:
Consider possible reasons for differences across bodies.
Connect to stability and change of planetary surfaces.
Wonder:
Ask about formation times, bombardment periods, and surface processes.
Initial Claim (Draft)
Write a brief claim answering:
โWhy are there so few craters on Earth compared to Mars and the Moon?โ
Support with at least two observations from your SeeโThinkโWonder.
Group Share: Domino Discover
Each group shares their one key idea.
Classmates:
Repeat/rephrase the idea for clarity.
Ask clarifying questions.
Note trends across groups.
Goal: Surface patterns and questions that set up our investigation.
Success Criteria
By the end of Engage, you can:
Identify key patterns in crater data across bodies.
State a defensible initial claim supported by observations.
Pose investigable questions about Earthโs crater record.
Setting Up the Next Step
Next, we will analyze the age, composition, and density of rocks from Earth, Moon, and other objects to test our claims and explore the solar systemโs early history.
2025.11.17 Earth Science
of the : Would you rather be able to see microscopic things or distant galaxies with your naked eye?
Agenda
DO NOW Review your model with your lab group and be prepared to share
Present models to class
Driving Questions
Craters
Goals
Examine images of Mars, the Moon, and Earth.
Identify patterns in crater presence and appearance.
Upcoming
Initial Explanation (Individual โ Group)
Individually:
Draft a model (words and/or diagram) for why intelligent life took so long to evolve on Earth
Include:
Environmental constraints (atmosphere, energy sources)
External events (mass extinctions)
Then in groups:
Combine ideas into one collaborative model
Model Quality Checklist
Does your model:
Identify key turning points and prerequisites for intelligence?
Show cause/effect chains (not just a list)?
Use labels, arrows, and annotations for clarity?
Connect to Stability & Change (CCC7): What persisted vs. what shifted?
Driving Question Board (DQB)
Individually:
Write 3โ5 specific questions needed to explain โwhy did it take so long?โ
One question per sticky note
As a class:
Share, sort, and categorize on chart paper or digital board
Create umbrella questions for each category
Conferring Prompts (DQB)
Why do these questions belong together?
What category connects them?
Are we missing sub-questions?
Can we formulate an umbrella question for each cluster?
Engage: Craters and Earth's History
Essential Questions
Why do we see so many craters on the Moon and Mars, but not on Earth?
How often have asteroids struck Earth in the past?
Investigative Phenomenon
On Earth, about 128 impact craters have been discovered.
On Mars, there are >300,000.
On the Moon, there are >1,000,000.
What do these differences suggest about stability and change in the solar system?
Todayโs Goal
Examine images of Mars, the Moon, and Earth.
Identify patterns in crater presence and appearance.
Develop initial claims for why Earth shows fewer craters despite similar ages of oldest minerals.
What Youโll Do
Individually complete a SeeโThinkโWonder using the handout:
See: What do you observe in the crater images for Mars, Moon, Earth?
Think: What patterns or ideas do these observations make you think of?
Wonder: What questions do you have about crater differences?
In groups, discuss and agree on one important idea to share.
Use the Domino Discover routine to surface class-wide trends.
SeeโThinkโWonder: Guidance
See:
Count and compare crater density, size, depth, and distribution.
Note surface features (erosion, water, atmosphere indicators).
Think:
Consider possible reasons for differences across bodies.
Connect to stability and change of planetary surfaces.
Wonder:
Ask about formation times, bombardment periods, and surface processes.
Initial Claim (Draft)
Write a brief claim answering:
โWhy are there so few craters on Earth compared to Mars and the Moon?โ
Support with at least two observations from your SeeโThinkโWonder.
Group Share: Domino Discover
Each group shares their one key idea.
Classmates:
Repeat/rephrase the idea for clarity.
Ask clarifying questions.
Note trends across groups.
Goal: Surface patterns and questions that set up our investigation.
Success Criteria
By the end of Engage, you can:
Identify key patterns in crater data across bodies.
State a defensible initial claim supported by observations.
Pose investigable questions about Earthโs crater record.
Setting Up the Next Step
Next, we will analyze the age, composition, and density of rocks from Earth, Moon, and other objects to test our claims and explore the solar systemโs early history.
2025.12.14 Earth Science
of the : If you could safely travel at the speed of light, where would you go first?
Agenda
Do Now - Finish PTO Asnwers
Discuss Answers
Read through PTO and ask clarifying questions
Driving Question Board
Craters
Goals
Look for driving questions about life outside of earth
Upcoming
Group Synthesis: Tell the Story
In table groups:
Share circled details; look for overlaps and disagreements
Decide on the most important ideas (limit 5โ7)
Write your โstory of the phenomenonโ with:
Sequence of events
Causes and effects
Stability and change (what stayed consistent vs. what shifted)
Optional: labeled diagram with arrows/annotations
Performance Task: Preview
You will:
Explain why modern humans emerged after ~4.5 billion years and five mass extinctions
Make and defend an argument:
Does life exist elsewhere?
Does intelligent life exist elsewhere?
Why havenโt we made contact?
What can humans learn from these ideas?
2025.11.13 Earth Science Do Now
Have you ever wondered about whether life exists somewhere outside of Earth?
Do you believe life exists somewhere outside of Earth? Why?
Do you think we will ever find life on other planets or communicate with other intelligent life?
2025.11.13 Earth Science
of the : Do you believe in Aliens?
Agenda
Do Now
Do Aliens Exist?
Evolution of Life on Earth
Goals
__
Upcoming
Do Aliens Exist?
Astrobiology
Evolution of Life on Earth
Directions:
Silently read or watch the โtextโ provided to you.
Record or annotate three details that are most important to the phenomenon being described for each text.
Share with your group. Each person should identify the details that they circled.
Discuss as a group, and determine the overall story. What is the phenomenon?
Are We Alone?
Does life exist somewhere outside of Earth? What about life that has technology and can communicate like humans?
4.5 billion years passed and 5 mass extinctions occurred before humans appeared on Earth. So far we have yet to come in contact with any other beings from another planet or even find evidence that proves any sort of life exists elsewhere.
So are we alone?
Your task in this unit is to work with classmates to investigate some factors that influence the evolution of life on Earth and explain why modern human's emergence on Earth required nearly 4.5 billion years. Then use your findings to make and defend an argument about the probability of intelligent life existing somewhere outside Earth.
Developing an Initial Explanation
What set of conditions allowed for the evolution of humans on Earth, and why did it take so long?
Your first step in this investigation is to consider details from the Tell the Story texts and work with classmates to develop an initial model that illustrates your group's ideas about why it took so long for humans to appear on Earth.
Driving Questions
Develop questions you have in order to figure out what was required for intelligent life to evolve on Earth and why did it take so long.
Each question goes on a separate sticky note.
Put them on your whiteboard
Organize them
2025.11.12 Earth Science Do Now
Take out Performance Organizer Task Packet
What is one positive contribution you can make today to this class or your classmates?
2025.11.12 Earth Science
of the : Vacation on the beach or adventure in the mountains?
of the : Would you rather discover that witches, vampires, or werewolves were real?
Agenda
10 Minutes - Finish Questions about Fe26
Discuss Rates of Fusion
Nucleosynthesis
Stellar Evolution Whiteboard
Star Life Cycle Performance Task
Goals
Create final model of stellar evolution
Upcoming
Stellar Evolution Quiz tomorrow
Stellar Evolution Model
Create a model to represent the life cycle of stars.
Make a claim about the best type & stage of star we should look for to support life on Earth
support this claim with evidence from your model
Use the rubric in your packet to guide your model
Be prepared to share out your model
2025.10.15 Earth Science
of the : If you could make up a new rule, what would it be?
Agenda
Finish Fe26 Simulation Experiment
Share out results
Create Stellar Evolution Model on Whiteboard (see rubric to help guide your model)
Goals
Model Stellar Evolution
Upcoming
Stellar Evolution Quiz Friday
2025.10.14 Earth Science
of the : Favorite season?
Agenda
Share out fusion vs. gravity whiteboards
Elaborate: Why do the lifetimes vary -> elaborating on fusion
Create a Stellar Evolution Model
Goals
Finish modeling stellar evolution
Upcoming
Quiz Friday
Share Out
Share out board and consider:
Why do more massive stars die faster than less massive stars?
How does the rate of star death relate to luminosity of a star (amount of energy released per second)?
What factors lead to a starโs stability or instability? Why is it important to understand how long a star is stable and when it might change?
What did you learn from the How the Sun Works investigation that you needed to know in order to explain what causes some stars to be stable and some stars to change?
2025.10.10 Earth Science
of the : What's your favorite classic Halloween monster?
Agenda
Review gravity/fusion balance
Rewatch video
Finish labeling forces
Do this on a whiteboard with your lab group BEFORE you put it into your packet
Goals
Explain the balance of fusion vs. gravity in stars
Upcoming
Star quiz at the end of next week
Consensus Discussion
2025.10.09 Earth Science
of the : Pumpkin flavored or apple flavored?
Agenda
Share See-Think-Wonder
HR Diagram Extension
Forces in a star
Goals
Identify stars based on the HR Diagram
Explain forces in a star
Upcoming
Hertzsprung-Russell Diagram (HR Diagram)
Star Formation
2025.10.08 Earth Science
of the : Do you believe in ghosts?
Agenda
Answer Questions about Graph (see photos in next slides)
can access these through Canvas on the homepage
HR Diagram Extension
Goals
Use the HR Diagram to describe the life cycle of stars
Upcoming
2025.10.07 Earth Science
of the : Do you like scary movies? What is your favorite?
Agenda
Star Sort & Graphing
See-think-wonder
Class consensus
HR Diagram Extension
Goals
Model the HR Diagram
Upcoming
Investigate:
How can we determine star mass from observable properties?
We will be creating a static model of the star in a box simulation
Instructions
Plot your stars based on their data
Look for patterns & connections based one graph
Investigate:
How can we determine star mass from observable properties?
We will be creating a static model of the star in a box simulation
Consensus Questions
1. What properties in stars allow us to make predictions about their life span and stability?
2. What kind of stars live the longest and most stable lives?
Compare student's height to their average long jump
Measure your height
Measure three long jumps
Calculate your average jump
Record in class data table on Canvas
Station 2: Reaction Time
Make a bar graph representing each group members average reaction time for their dominant and non-dominant hand
Hold ruler above your partners hand, and without warning drop the ruler. Your partner should catch the ruler.
Use the calculator in the group spreadsheet to convert the distance the ruler fell into a time
Record 3 trials for your dominant and non-dominant hand. Average the times.
Make your bar graph
Station 4: Lung Capacity
Make a histogram of balloon cirumferences that we can inflate the balloons to with one breath
Get your own balloon -- YOU ONLY GET 1 BALLOON
Take a big breath and inflate the balloon as much as you can with 1 exhale.
Pinch the balloon so no air comes out.
Tie it, or hold it while partner measures the maximum circumference of the balloon.
Record in the class data table in the class spreadsheet.
Station 4: Cool Down
Compare the cooling rate of water when different number of ice cubes are added to water.
Fill each beaker in your group up the same amount using the tap water.
Add in different amounts of ice cubes according to the data table.
Record the temperature each minute for 10 minutes
Graph each cups temperature on the graph.
2024.09.05 Earth Science
of the : Sweet or savory for breakfast?
Agenda
Sit Anywhere (For Now)
you will move later
Do Now (fill out questionnaire & card)
Question of the Day
Grouping Game
Survival Island
Goals
Introductions
Classroom Culture
Homework
Signed Safety Contract
Do Now
Fill out index card:
Name
Phone number to reach your parents/guardians if you sleep through the Regents exam
Favorite Candy
Favorite Emoji
Emoji the describes your current mood
Fill out Paper Quesionnaire
Lab Grouping Game
There are 15 of you
Based on your cards get into LOGICAL groups of 3
Check whole class answer with Mr. Porter
4 Chances to Check
Reorganize if necessary
(Yes this is the game Connections)
Answers
Answers
States of Matter: Gas, Liquid, Solid
Energy: Juice, Spirit, Vigor
Classical Elements: Air, Fire, Water
Things with Rings: Circus, Saturn, Tree
Desserts: Pie, Cake, Cobbler
Survival Island
Share your survival skill that you wrote down with your group
Using everyone's skill develop a plan to survive or escape the deserted island
On your whiteboard present your plan (drawing, mind map, set of instructions)
Highlight everyone's skill
Share Plan to the class
Pause the discussion and ask for clarification, particularly of the following key points:
- There are different parts to the interior of the Earth
- Not all earthquake waves can travel through the different parts of the Earth
- Based on our observations we know that P-waves and S-waves can only travel through certain materials
- Knowing this allows us to determine the state of matter of each of the sections of - Earthโs interior (solid outside layers and a liquid core)
- There are at least 3 layers in Earth
Look & Listen For:
- Cโ14 half-life โ 5,700 years; Uโ238 half-life โ 4.5 billion years.
- Different isotopes for different age ranges (organic vs. very old rocks).
- Object ages cluster around ~4.40โ4.59 BYA โ formation window.
- Moon melt rocks 3.75โ4.0 BYA โ intense bombardment.
- Age alone doesnโt explain crater differences (Moon โซ Mars โฅ Earth).
## Look & Listen For
- โThe Moon has almost 10,000ร Earthโs craters and >3ร Mars.โ
- โCrater size/depth seem larger on Moon and Mars.โ
- โAge alone may not explain differencesโoldest minerals are similar (~4.4โ4.6 BYA).โ
- โMaybe Earthโs surface changes more over time.โ
## Discussion Prompts
- If Mars, Earth, and the Moon formed around the same time,
why does the Moon have so many more craters?
- If many asteroids hit the Moon ~3.75โ4.0 BYA, what likely happened on Earth and Mars?
- What evidence could confirm or refute your claim?
## Look & Listen For
- โThe Moon has almost 10,000ร Earthโs craters and >3ร Mars.โ
- โCrater size/depth seem larger on Moon and Mars.โ
- โAge alone may not explain differencesโoldest minerals are similar (~4.4โ4.6 BYA).โ
- โMaybe Earthโs surface changes more over time.โ
## Discussion Prompts
- If Mars, Earth, and the Moon formed around the same time,
why does the Moon have so many more craters?
- If many asteroids hit the Moon ~3.75โ4.0 BYA, what likely happened on Earth and Mars?
- What evidence could confirm or refute your claim?