NLN NEX Science study materials
NLN NEX Science study resources

NLN NEX Science study plan

NLN NEX Science · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Life and Physical Sciences (biology, chemistry, physics)

  • Build a one-page formula and unit-conversion sheet covering density, molarity, pH, force, work, and Ohm's law, then solve 30 mixed calculation items using it

  • Distinguish ionic, covalent, and hydrogen bonding by classifying 25 given compounds and predicting which conduct electricity in solution

  • Balance 20 chemical equations and identify each as synthesis, decomposition, single replacement, double replacement, or combustion

  • Describe the structure of an atom and predict periodic trends in atomic radius, ionization energy, and electronegativity for 15 element pairs

Your checkpoint

Completed formula sheet plus a 30-item calculation set scored at 80% or better, with every miss rewritten correctly

Week 2

Life and Physical Sciences (biology, chemistry, physics)

  • Compare cell types by labeling a hand-drawn diagram of prokaryotic, plant, and animal cells with at least 10 structures each

  • Explain the steps of cellular respiration and photosynthesis, listing where each stage occurs and its net ATP yield

  • Predict inheritance outcomes by completing 10 monohybrid and dihybrid Punnett squares and stating phenotype ratios

  • Relate Newton's three laws and the conservation of energy to 8 everyday scenarios in one sentence each

Your checkpoint

A two-page summary comparing cellular respiration and photosynthesis, plus 10 worked genetics problems with answers

Week 3

Human Anatomy and Physiology

  • Trace the path of blood through the heart and both circuits, naming all chambers, valves, and major vessels in order

  • Differentiate the formed elements of blood and match each to its function, lifespan, and site of production

  • Explain gas exchange by describing the mechanics of inhalation and exhalation and the role of partial pressure gradients

  • Describe the nephron's segments and predict what happens to urine concentration when ADH or aldosterone levels change

Your checkpoint

Hand-drawn, fully labeled cardiovascular and nephron diagrams, self-checked against a textbook with all labels correct

Week 4

Human Anatomy and Physiology

  • Map the divisions of the nervous system and explain how an action potential propagates, including depolarization, repolarization, and refractory periods

  • Identify the major endocrine glands, their hormones, and their target-organ effects in a 25-row table

  • Classify bones and joints by structure and give one example of each joint type with its range of motion

  • Sequence the events of digestion from ingestion to absorption, naming the enzyme acting at each step

Your checkpoint

A 25-row endocrine hormone table and a 20-question self-quiz on nervous, skeletal, and digestive systems scored at 80% or better

Week 5

Microbiology and Health-Related Science

  • Compare bacteria, viruses, fungi, and protozoa by size, structure, reproduction method, and one example disease each

  • Describe the bacterial growth curve and predict how temperature, pH, and oxygen availability shift growth

  • Explain how antibiotics differ from antivirals in mechanism, and give three reasons antibiotic resistance develops

  • Distinguish sterilization, disinfection, and antisepsis and match 10 given scenarios to the correct level of control

Your checkpoint

A completed pathogen comparison chart covering 10 organisms with structure, transmission route, and disease caused

Week 6

Microbiology and Health-Related Science

  • Sequence the innate and adaptive immune responses and distinguish the roles of B cells, T cells, and antibodies

  • Interpret the chain of infection by identifying each link in 8 outbreak scenarios and proposing a break point for each

  • Calculate incidence and prevalence from given counts and explain how each is used in public health

  • Differentiate the major routes of disease transmission and give one prevention practice for each route

Your checkpoint

A written response to 5 short outbreak scenarios, each correctly identifying the chain link, transmission route, and control measure

Week 7

Scientific Reasoning and Data Interpretation

  • Identify the independent variable, dependent variable, and at least two controlled variables in 15 described experiments

  • Distinguish correlation from causation and evaluate the strength of 8 given claims

  • Read tables and line, bar, and scatter graphs to extract trends and calculate means and percent change without a calculator error

  • Evaluate experimental validity by spotting sources of bias, missing controls, and sample-size problems in 6 study summaries

Your checkpoint

A data-interpretation practice set of 20 items scored at 85% or better, with a written justification for each answer

Week 8

Life and Physical Sciences (biology, chemistry, physics) & Human Anatomy and Physiology & Microbiology and Health-Related Science & Scientific Reasoning and Data Interpretation

  • Complete two timed full-length mixed practice sets and log every missed item by domain and error type

  • Re-teach the five weakest objectives from the error log by writing a short explanation and two original practice questions for each

  • Recall the highest-yield facts from all four domains using a spaced-review deck, marking any card missed twice for a final pass

  • Build a one-page test-day strategy sheet covering time per item, when to guess, and a pacing check at the halfway point

Your checkpoint

A completed error log with at least 10 corrected weak areas re-tested at 85% or better, plus a final strategy sheet

Milestones

Week 2: Score 80% or higher on a 40-item Domain 1 self-test covering chemistry, physics, and cell biology; any subarea below 70% is flagged for weekly review

Week 4: Recite the blood flow path and nephron sequence from memory with no more than two prompts, and pass a 30-item anatomy and physiology quiz at 80% or higher

Week 6: Correctly match 10 pathogens to their structure, transmission route, and prevention measure, and correctly calculate incidence and prevalence on 5 of 5 practice items

Week 8: Average 80% or higher across two timed mixed practice sets with no single domain below 70%, and confirm every error-log item has been re-tested