- What the Acronym Means
- The Age Band and the Subject
- The Four Components Behind the Title
- Inside Component 1: The Blueprint
- The Nine Science Standards
- Eligibility, Fees and Deadlines
- What "Certified" Means Numerically
- Keeping the Credential: MOC
- Sequencing Your Prep Around the Components
- 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% toward the total weighted scaled score.
- Only Component 1 is a computer-delivered test; Components 2-4 are portfolios built from your own classroom evidence.
- Passing needs a total weighted scaled score of at least 110, plus 1.75 unweighted averages in both groups.
What the Acronym Means
In this context, EA/Science stands for Early Adolescence/Science, a certificate area of National Board Certification offered by the National Board for Professional Teaching Standards (NBPTS). It is an advanced, voluntary credential for practicing teachers who teach science to early adolescents. It is not an entry-level license, and it is not a single multiple-choice exam. It is a four-component certification process that combines one computer-delivered content assessment with three portfolios drawn from your real classroom.
The acronym appears in other fields too, which is a common source of confusion when you search for it. This article covers only the NBPTS Early Adolescence/Science certificate. If you want the short definition first, our explainers on what EA/Science stands for and what EA/Science is cover the basics. Here we go deeper into what the label actually commits you to.
The Age Band and the Subject
The name has two parts, and each one shapes the certification.
"Early Adolescence" means ages 11-15
NBPTS organizes certificates by the developmental stage of students rather than by grade label. Early Adolescence covers ages 11-15, which in most schools means middle school and sometimes the edges of elementary or early high school. The age band matters in practice: your classroom evidence must come from students in this range. Ordinarily you need access to at least six students, with at least 51% of them aged 11-15, subject to the specific instructions for each component.
"Science" means broad, integrated science teaching
The certificate is not limited to one discipline. It treats science as a whole: Earth and space science, life science and physical science, plus the practices of science itself, such as inquiry, data analysis and the nature of scientific knowledge. A candidate is expected to teach across these areas and to understand how students at this age form and revise scientific ideas.
The Four Components Behind the Title
The certification is built from four components. Each one is an official assessment component, and each contributes a share of your total weighted scaled score. They are not four science-content domains and not four separate written exams.
| Component | Weight | Format |
|---|---|---|
| Component 1: Content Knowledge | 40% | Computer-delivered assessment at a Pearson Professional Center |
| Component 2: Differentiation in Instruction | 15% | Classroom-evidence portfolio |
| Component 3: Teaching Practice and Learning Environment | 30% | Classroom-evidence portfolio |
| Component 4: Effective and Reflective Practitioner | 15% | Classroom-evidence portfolio |
Component 1 is the single heaviest piece of the whole certification at 40%, with Component 3 next at 30%. That weighting is why content mastery cannot be treated as an afterthought, even though three of the four components are portfolios. For a deeper walk-through of how each piece is organized, see our EA/Science exam domains guide.
Inside Component 1: The Blueprint
Component 1 is the part most candidates think of as "the exam." It is delivered by Pearson Professional Assessments at Pearson Professional Centers, and it has two halves of equal weight within the component: selected-response items and constructed-response exercises.
Format and timing
- Selected response: approximately 45 items, of which 40 are scored and five are embedded, unscored field-test items. You cannot tell which are which, so treat every question as live.
- Constructed response: three exercises, titled Data Analysis, Contexts of Science, and Development of Scientific Concepts.
- Answering time: 60 minutes for the selected responses plus 30 minutes per constructed-response exercise, for 150 minutes total.
- Appointment length: roughly three hours once you include the NDA, tutorial and a break.
- Tools: a built-in scientific calculator, constants and a periodic table are provided. Personal calculators and outside references are prohibited.
Selected-response content areas
The three 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%
How science works as a way of knowing, and how it connects to the world outside the lab.
- 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, covering the three core science areas.
- Earth and Space Science
- Life Science
- Physical Science
Curriculum, Instruction, and Learning Environment (Standards III, V) - approximately 20%
The teaching-facing side of the item set.
- Crosscutting Principles
- Assessing and Addressing Preconceptions
- Safety
Notice that content knowledge dominates the multiple-choice half, while practices, preconceptions and safety make up the rest. The constructed responses then ask you to do science reasoning in writing: interpret data, situate science in context, and explain how you would develop a scientific concept with students. For help pinning down what to review, our EA/Science study guide and the one-page EA/Science cheat sheet are good companions.
The Nine Science Standards
Behind all four components sits the NBPTS Science Standards (Third Edition) for this certificate area. They describe what accomplished science teaching looks like, and your portfolios are scored against them. There are nine:
- Understanding Students
- Knowledge of Science
- Curriculum and Instruction
- Assessment
- Learning Environment
- Family and Community Partnerships
- Advancing Professionalism
- Diversity, Fairness, Equity, and Ethics
- Reflection
These are unweighted professional standards. They are not extra exam domains and they do not carry their own percentages. Think of them as the lens through which assessors read your evidence: a strong portfolio entry makes it obvious, for example, how you understand your students, differentiate for them and reflect on what worked.
Key Takeaway
Read the nine standards before you choose classroom evidence. The best portfolio entries are not the flashiest lessons; they are the ones where the standards are visibly at work in your decisions with real students.
Eligibility, Fees and Deadlines
Who can register
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 complete checklist, see our EA/Science requirements guide.
Fee structure
| 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 partial-retake pricing for Component 1 is worth noticing: if you fall short on one exercise, you can retake just that piece rather than the whole component. A full cost walk-through, including how these numbers add up, is in our EA/Science certification cost breakdown.
The clock
- Attempt all four components within three years.
- Achieve certification within five years.
- For the 2026-27 cycle, registration ends February 28, 2027, and Component 1 testing runs March 1-June 15, 2027.
Scheduling details and portfolio submission timing are covered in our EA/Science exam dates guide.
What "Certified" Means Numerically
Certification is not a simple "75% on each part" arrangement. To pass you must satisfy three conditions at once, in addition to being eligible:
- 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.
There is no universal 2.75-per-component passing rule, and you should be skeptical of any source that claims one. Because the weighted total uses the 40/15/30/15 shares, strength in Component 1 and Component 3 moves your total the most, while the unweighted-average floors prevent you from carrying the entire result on one group. For more on how the scoring works in practice, read our EA/Science passing score guide. If you are wondering about difficulty or outcomes, see how hard the EA/Science exam is and what the data says in our pass rate article. Be careful there: Maintenance of Certification success statistics are not initial EA/Science pass rates.
Keeping the Credential: MOC
National Board Certification is maintained every five years through Maintenance of Certification (MOC). MOC is a two-component portfolio built around two Professional Growth Experiences. A successful MOC extends your certification by five more years. The MOC fee is $495 plus the $75 registration fee.
This is a meaningful difference from credentials that require periodic re-testing: you renew by documenting your continued growth as a practitioner, not by sitting for another content exam. It also means the certification is a long-term professional commitment rather than a one-time hurdle. If you are weighing that commitment, our analysis of whether the EA/Science certification is worth it and our salary guide look at the payoff, which varies by state and district.
Sequencing Your Prep Around the Components
Because the components differ so much in format, the most useful planning question is not "how many hours per week?" but "which component needs which kind of work, and when?" One sensible ordering for a single-cycle candidate:
Read the standards, pick your evidence
- Review the nine Science Standards and the component instructions.
- Confirm you have access to at least six students in the 11-15 band.
- Draft a plan for Components 2, 3 and 4 so classroom filming and collection fit your school calendar.
Build and refine portfolios
- Prioritize Component 3 (30%) for the strongest evidence of teaching practice and learning environment.
- Use Component 2 to show how you differentiate for specific students.
- Write reflectively for Component 4 while the lessons are fresh.
Component 1 content and constructed response
- Weight selected-response review toward Earth and Space, Life and Physical Science, since content is the largest share of that section.
- Practice Data Analysis, Contexts of Science, and Development of Scientific Concepts as timed written responses of about 30 minutes each.
- Drill safety and student preconceptions, which are easy points when you know the conventions.
Scheduling Component 1 late in your window gives your portfolios time to mature, but it also compresses your content review, so start the content refresh earlier than feels necessary. Realistic practice questions that mirror the Component 1 format are available through our EA/Science practice test site, and you can pair them with the guidance in our study guide.
Frequently Asked Questions
It stands for Early Adolescence/Science, the NBPTS certificate area for teachers of science to students ages 11-15. It is an advanced credential for practicing, licensed teachers.
No. It is four components. Component 1 is a computer-delivered content assessment at a Pearson Professional Center; Components 2-4 are classroom-evidence portfolios. Their weights are 40%, 15%, 30% and 15%.
Answering time is 150 minutes: 60 minutes for roughly 45 selected-response items plus 30 minutes for each of three constructed-response exercises. The full appointment runs about three hours with the NDA, tutorial and break.
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, along with meeting eligibility requirements.
Through Maintenance of Certification every five years. MOC is a two-component portfolio based on two Professional Growth Experiences, and success extends your certification another five years. The fee is $495 plus $75 registration.
If you are exploring where this credential can take you, our overviews of EA/Science jobs and the broader EA/Science certification are logical next reads, and you can start testing your readiness anytime on the main practice test site.