- What EA/Science Actually Is
- The Four Components and Their Weights
- Inside Component 1: The Computer-Delivered Test
- Components 2-4: Classroom Evidence
- The Nine Science Standards Behind It All
- Eligibility, Fees and Timelines
- How Passing Works
- Maintaining the Certificate
- Sequencing Your Preparation
- Frequently Asked Questions
- EA/Science is National Board Certification for teachers of science to students ages 11-15, issued by NBPTS.
- Four components carry weights of 40%, 15%, 30% and 15%; only Component 1 is a computer-based test.
- Component 1 has about 45 selected-response items plus three constructed-response exercises, in 150 answering minutes.
- Passing needs both unweighted averages of at least 1.75 and a total weighted scaled score of at least 110.
What EA/Science Actually Is
EA/Science stands for National Board Certification, Early Adolescence, Science. It is an advanced teaching credential awarded by the National Board for Professional Teaching Standards (NBPTS) to accomplished teachers of science whose students are roughly 11-15 years old. In practice, that is the middle-grades science classroom.
It helps to be precise about what this credential is not. It is not a state licensure exam you take once in a testing room and walk away from, and it is not a single-sitting content test. It is a four-component, evidence-based certification in which you demonstrate both what you know about science and how you teach it. If you are looking for the shorthand explanations of the acronym, our pages on what EA/Science stands for and the meaning of EA/Science cover the terminology, while this article focuses on how the whole certification fits together.
The Four Components and Their Weights
The certification is built from four official assessment components. Each contributes a share of your total weighted scaled score. These are assessment components, not four science-content domains and not four separate written exams.
| Component | Name | Weight | Format |
|---|---|---|---|
| 1 | Content Knowledge | 40% | Computer-delivered at a Pearson Professional Center |
| 2 | Differentiation in Instruction | 15% | Classroom-evidence portfolio |
| 3 | Teaching Practice and Learning Environment | 30% | Classroom-evidence portfolio |
| 4 | Effective and Reflective Practitioner | 15% | Classroom-evidence portfolio |
Component 1 is the heaviest single piece at 40%, followed by Component 3 at 30%. Together they account for 70% of the weighted total, which is why many candidates treat them as the anchors of their plan. For a closer look at how each component is scored and approached, see our complete guide to the four EA/Science components.
Inside Component 1: The Computer-Delivered Test
Component 1 is delivered by Pearson Professional Assessments at Pearson Professional Centers. It is the part of the certification that most resembles a traditional exam, and it has its own internal structure.
Format and timing
- Approximately 45 selected-response items: 40 scored items plus five embedded, unscored field-test items you cannot tell apart from the rest.
- Three constructed-response exercises: Data Analysis, Contexts of Science, and Development of Scientific Concepts.
- Selected responses collectively account for half of Component 1; the three constructed responses account for the other half.
- Answering time: 60 minutes for the selected responses plus 30 minutes for each constructed-response exercise, totaling 150 minutes.
- The standard appointment runs approximately three hours once you include the nondisclosure agreement, tutorial and a break.
A built-in scientific calculator, a constants reference and a periodic table are provided on screen. Personal calculators and outside references are prohibited. The timing and security rules come from the Component 1 Assessment Center Policy and Guidelines; the linked file carried slightly different revision labels in different views, so confirm the current revision and admission instructions before test day.
The selected-response blueprint
The approximate percentages below apply only to the selected-response items, not to all of Component 1 and not to the whole certification.
Knowledge of Science Practices and Context (Standard II) - approximately 30%
The nature of scientific work rather than isolated facts.
- Nature of Science
- Understanding of Inquiry
- Context of Science
Knowledge of Science Content (Standard II) - approximately 50%
The largest slice of the selected-response section, spanning the three major science disciplines you teach in the middle grades.
- Earth and Space Science
- Life Science
- Physical Science
Curriculum, Instruction, and Learning Environment (Standards III, V) - approximately 20%
Pedagogy and classroom management in a science setting.
- Crosscutting Principles
- Assessing and Addressing Preconceptions
- Safety
Notice what this implies for preparation. Half of the selected-response items test content across Earth and space, life and physical science, but a meaningful share asks you to think like a science educator: how to surface and correct student preconceptions, how to manage lab safety, and how to connect crosscutting ideas across disciplines. Our EA/Science study guide walks through how to divide your time across these areas.
The constructed-response exercises
Because the three written exercises make up half of Component 1, they deserve real attention. Data Analysis asks you to interpret and reason from scientific data. Contexts of Science asks you to connect science to broader contexts. Development of Scientific Concepts asks you to show how you would build student understanding of a concept. Each exercise has a 30-minute window, so practicing concise, well-organized written responses matters as much as knowing the content.
Components 2-4: Classroom Evidence
Components 2, 3 and 4 are portfolio components built from evidence of your own teaching. They are where the certification distinguishes itself from a content test: you document, analyze and reflect on real instruction with real students.
- Component 2: Differentiation in Instruction (15%) focuses on how you tailor teaching to the varied needs of your students.
- Component 3: Teaching Practice and Learning Environment (30%) is the second-heaviest component and centers on your actual practice and the classroom climate you create.
- Component 4: Effective and Reflective Practitioner (15%) examines how you assess, reflect and grow as a professional.
Early Adolescence classroom evidence ordinarily requires access to at least six students, with at least 51% of them aged 11-15, subject to the specific instructions for each component. If your teaching assignment is unusual, such as small groups, itinerant roles or mixed-age classes, check those component-specific rules early, because it affects what evidence you can collect.
The Nine Science Standards Behind It All
Underneath the four components sits the framework that defines accomplished science teaching: the nine Science Standards for this certificate area. They are professional standards, not additional weighted exam domains, so they do not carry percentages of their own. They inform what assessors look for across all four components.
- Understanding Students
- Knowledge of Science
- Curriculum and Instruction
- Assessment
- Learning Environment
- Family and Community Partnerships
- Advancing Professionalism
- Diversity, Fairness, Equity, and Ethics
- Reflection
A useful habit is to read your portfolio drafts against these nine statements. If a piece of evidence does not clearly connect to the standards it is meant to illustrate, it is probably not doing its job.
Eligibility, Fees and Timelines
Who can pursue it
You need an accredited bachelor's degree and a valid state teaching license, or you must satisfy your state's licensure requirements, before you register. Three successful years of licensed teaching must be verified by June 30 of your third candidacy year. For the detailed walk-through, see our EA/Science requirements guide.
What it costs
| Item | Amount |
|---|---|
| Per component, initial | $475 |
| All four components, initial | $1,900 |
| Registration, per assessment cycle | $75 |
| Component 1 retake | $125 per exercise and/or selected-response section |
| Portfolio retake | $475 per component |
The Component 1 retake structure is worth noting: you can retake just the section or exercise that held you back rather than paying for the whole component again. Our certification cost breakdown goes deeper on budgeting, and if you are weighing the investment, the ROI analysis and salary guide address the payoff question.
Timelines and windows
You must attempt all four components within three years and achieve certification within five. For the 2026-27 cycle, registration ends February 28, 2027, and Component 1 testing runs March 1 through June 15, 2027. Scheduling specifics are tracked on our EA/Science exam dates page.
How Passing Works
Certification is not decided by a single cut score on a single test, and there is no universal "2.75 per component" rule. To certify, you need to be eligible and meet all three of the following:
- An assessment-center unweighted average of at least 1.75
- A portfolio unweighted average of at least 1.75
- A total weighted scaled score of at least 110
This structure means a strong portfolio can offset a weaker Component 1 performance, and vice versa, as long as every threshold is cleared. It also means you cannot ignore either side: a high weighted total will not rescue an average that falls below 1.75. Details are in our passing score explainer, and if you are curious how difficult candidates find the process, see how hard the EA/Science exam is and what the pass-rate data does and does not show.
Maintaining the Certificate
Certification is not permanent. It is maintained every five years through Maintenance of Certification (MOC), a two-component portfolio based on two Professional Growth Experiences. A successful MOC extends your certification another five years. The MOC fee is $495 plus a $75 registration fee.
MOC is distinct from the initial certification process, and it is also distinct from certification in the adolescence-and-young-adulthood science area (AYA/Science), which covers an older student range. If you teach grades that straddle the two bands, confirm which certificate matches your students before you register.
Sequencing Your Preparation
Because the components differ so much in format, the most useful planning question is not "how many hours a week" but "which component first." Here is one reasoned ordering for a candidate attempting everything within the window.
Standards and evidence planning
- Read the nine Science Standards and map them to your current units
- Check that your class roster meets the six-student, 51% aged 11-15 evidence rule
- Start collecting classroom artifacts early, since portfolio evidence cannot be rushed
Component 1 content build
- Prioritize Knowledge of Science Content, the roughly 50% selected-response slice, across Earth and space, life and physical science
- Review Nature of Science and Understanding of Inquiry, the foundation of the roughly 30% practices slice
- Drill preconceptions and safety scenarios from the roughly 20% instruction slice
Timed practice before the test window
- Rehearse the three constructed-response exercises in 30-minute blocks
- Practice with an on-screen calculator and periodic table, not your own
- Run a full 150-minute simulation before your Pearson appointment
The logic: portfolio evidence takes the longest to gather and cannot be created retroactively, so it starts first and runs in parallel. Content review comes next because it carries the largest single weight. Timed written practice comes last, close to your test date, when timing stamina matters most. For a compact end-of-prep refresher, our one-page cheat sheet collects the key facts, and you can build test-day familiarity with questions on the main practice test site.
Frequently Asked Questions
No. It is a four-component certification. Only Component 1 is a computer-delivered assessment; Components 2, 3 and 4 are portfolios built from your own classroom evidence.
Answering time is 150 minutes: 60 for the roughly 45 selected-response items and 30 for each of the three constructed-response exercises. The full appointment runs about three hours including the tutorial and a break.
Component 1: Content Knowledge carries the largest weight at 40%, followed by Component 3: Teaching Practice and Learning Environment at 30%. Components 2 and 4 are each 15%.
You need an assessment-center unweighted average of at least 1.75, a portfolio unweighted average of at least 1.75, and a total weighted scaled score of at least 110, in addition to meeting eligibility requirements.
Yes. Component 1 retakes cost $125 per exercise and/or selected-response section, so you can retake only the parts you need. Portfolio retakes cost $475 per component.
For a broader orientation to the credential and what it can open up professionally, explore our overviews of EA/Science certification and EA/Science jobs, and use the practice test hub to start building familiarity with the question style.