NLN NEX Science study plan
NLN NEX Science · Give each week a clear focus.
8 weeks · About 7 hours per week
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
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
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
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
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
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
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
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