Goldilocks Report: Lock-Point Exemplars · Earth & Env Science

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Why these four pieces: the Goldilocks Report locks component by component, and locked bands don't re-mark. These exemplars cover the four places where a band most often gets lost: the framework criterion (locks Block 7), the failure-mechanism paragraph (locks Block 8), the UNKNOWN verdict (locks Block 9), and the synthesis paragraph (locks Block 9).

The content is deliberately unusable in your Report. The worked criterion uses the magnetic field. The mechanism paragraph uses Venus, which is nobody's assigned case. The synthesis uses Kepler-22 b, which is not on your candidate list. Learn the moves. The content won't transfer.

One flaw is planted and NOT annotated. Same rule as the U0 exemplar: one real error is in here on purpose. Bring your candidate to the Block 7 work session.

About how this was made: drafted with AI, revised by Ms. Jayanthi/Mr. Ignash. The AI Documentation Template for this document is on the last page.

Prefer paper? Printed copies available in class.

1. One Criterion, All Five Fields

Locks at Block 7 (Component 1, K/U). The template asks five questions of every criterion. Here is one criterion answering all five, in student voice.

Criterion: Active global magnetic field

(1) Name it precisely: The planet generates its own global magnetic field, strong enough to deflect most of the solar wind coming from its star.

(2) Why it matters for life: Without a magnetic field, charged particles from the star hit the upper atmosphere directly and strip it away over millions of years. Losing the atmosphere means losing surface pressure and greenhouse warming, and liquid water goes with them. The field doesn't protect life directly. It protects the atmosphere that protects life.

(3) How a scientist would detect it: For planets in our solar system, spacecraft measure the field directly with magnetometers. For exoplanets, we mostly can't measure it yet. There are attempts to catch radio emissions that a magnetic field should produce, but so far the detections are not confirmed. So for my exoplanet, this criterion will probably end up UNKNOWN, and I want to be honest about that now instead of pretending later.

(4) Earth's value as baseline: Earth's field is generated by convection in the liquid outer core and measures about 25 to 65 microtesla at the surface, depending where you stand. It has existed for over 3.5 billion years, which is most of the time life has existed here. That overlap is part of my justification for field 2.

(5) Where this criterion can fail: Two ways. A planet can lose the field when its core cools, which is what happened to Mars around 4.1 billion years ago. But the criterion itself can also fail as a requirement: Venus has no internally generated field, and it still holds the thickest atmosphere of any rocky planet in the solar system. So a magnetic field clearly isn't the only thing standing between an atmosphere and the solar wind. I'm keeping the criterion, but Venus forces me to treat it as 'helps retain an atmosphere' rather than 'required for one.'

Why this earns a 7–8 on K/U

Field 1 is specific enough to test. Field 2 gives a mechanism chain, not a slogan. Field 3 admits what current instruments can't do, which sets up an honest UNKNOWN later instead of a fake verdict. Field 5 is the standout: the writer found a counterexample to their own criterion (Venus) and revised the criterion's strength instead of hiding the problem. Weakening your own claim because the evidence says so is a 7–8 move. Most first frameworks state criteria as if they were laws.

2. Mechanism, Not Symptom

Locks at Block 8 (Component 2, K/U). Your Report explains why Mars fails. The rubric's exact words: “Mars's failures explained with mechanism.” The pair below shows the difference, on Venus, so you can't lift it into your Mars section.

Version A: Developing (3–4)

“Venus fails my temperature criterion because it is extremely hot. The surface is about 467°C, which is far too hot for liquid water or for any life we know of. It also fails the water criterion because it is completely dry.”

Version B: Exemplary (7–8)
“Venus fails my temperature criterion, and the mechanism is a runaway greenhouse. Venus orbits close enough to the Sun that its early oceans evaporated faster than they could cycle back. Water vapor is itself a greenhouse gas, so evaporation caused more warming, which caused more evaporation. Once the water was gone from the surface, there was no rain and no weathering to pull CO2 back out of the air, so volcanic CO2 just accumulated. The result is a 92-bar CO2 atmosphere and a 467°C surface. The heat isn't the failure. The heat is the leftover evidence of the failure, which was losing the water-and-weathering thermostat.”

The difference

A reports the symptom (hot, dry) and treats it as the explanation. B tells you what broke, in what order, and why it couldn't recover. Test your own Mars paragraph the same way: if every sentence would still be true in a world where Mars had simply formed cold, you've described the state, not the mechanism. The rubric line “Mars is cold and dry without explaining why or when” describes Version A.

3. The Honest UNKNOWN

Locks at Block 9 (Component 4, T/T). UNKNOWN is a legitimate verdict, but only when it's done like this, not as a shrug.

Version A: a shrug (3–4)

“Magnetic field: UNKNOWN. We don't know if Kepler-22 b has a magnetic field, so I can't evaluate this criterion.”

Version B: a working verdict (7–8)
“Magnetic field: UNKNOWN, and here's what that means for my verdict. No current instrument can measure an exoplanet's magnetic field, so this isn't a gap in my research, it's a gap in the field's instruments. What we do know: Kepler-22 b is about 2.1 Earth radii, and if it's rocky, a planet that size probably has a hot interior for longer than Earth will, which would favor a field. If it's a mini-Neptune, the question changes completely. A confirmed radio detection of auroral emission would resolve this, and radio astronomers are looking. Until then, my overall verdict has to carry this uncertainty rather than hide it, which is why I say 'promising' and not 'habitable.'”

The difference

Both versions say UNKNOWN. A stops there. B says why it's unknown (instruments, not laziness), what nearby evidence still constrains the answer, what future observation would resolve it, and how the uncertainty flows into the final verdict. That last step is the one the NASA committee will ask about in the Q&A.

4. The Synthesis Paragraph

Locks at Block 9 (Component 5, T/T). One paragraph naming a pattern across your three planets that isn't visible from any one of them alone. The exemplar uses Earth, Venus, and Kepler-22 b.

Version A: expected comparison (5–6)

“Earth meets all my criteria, Venus fails most of them, and Kepler-22 b is somewhere in between because so much is unknown. This shows that habitability exists on a spectrum and that Earth is very special.”

Version B: non-obvious pattern (7–8)
“The thing I didn't expect: Earth and Venus started from nearly the same materials at nearly the same distance from the same star, and my framework scores them almost opposite on every criterion. The difference between them isn't ingredients. It's that Earth kept its feedback loops (the water-weathering thermostat especially) and Venus lost hers early. That changes how I read Kepler-22 b. The data sheet can tell me its ingredients (size, orbit, star), but ingredients are exactly what Earth and Venus shared. What decides habitability seems to be whether the feedbacks survived, and that's the one thing no telescope can currently see. My framework mostly measures ingredients. I should say that out loud in my verdict.”

The difference

A is true and everyone will write it. B holds all three planets at once and notices something that undermines part of its own framework, then carries that into the verdict instead of burying it. A synthesis that costs your argument something is almost always the stronger one. Also notice B is still in plain student voice. Deep doesn't mean fancy.

AI Documentation: for this exemplar itself

Tool(s) used: Claude (Anthropic, Fable 5), July 2026, working from the Goldilocks Report page, the framework template, and the rubric.

Prompts (representative): “Create lock-point exemplars for the Goldilocks Report components using off-assessment content (Venus, Kepler-22 b, magnetic field), in the same student voice and annotation style as the U0 exemplar set, avoiding the AI writing habits we flagged there.”

What the AI contributed: the full draft, applying the voice corrections from the U0 exemplar review.

What Ms. Jayanthi/Mr. Ignash contributed: the exemplar strategy and the off-list content rule; the U0 voice feedback this set was built on; review and final judgment on every band claim and every science claim.

One thing the AI got wrong: it gave Kepler-22 b's radius as about 2.4 Earth radii, which is the 2011 discovery value. NASA's exoplanet catalog revised it to about 2.1 Earth radii in 2023. Verified against the catalog and corrected in Exemplar 3. The other numbers held up on checking: Earth's 25 to 65 microtesla range, the 4.1-billion-year date for Mars's field collapse, and, as of mid-2026, still no confirmed radio detection of an exoplanet's magnetic field.