ACT Science Section Night‑Before Cram Sheet (Question Types + Game Plan)

Exam Overview & Format

ACT structure (what you’re walking into)

*Composite score is the average of the four multiple‑choice section scores (English/Math/Reading/Science). Writing does not affect the Composite.

Total time + breaks (typical in-person paper testing)

• Without Writing: 2h 55m testing time.
• With Writing: 3h 35m testing time.
• Breaks (typical):
  • ~10 minutes after Math.
  • ~5 minutes after Science (only if you’re taking Writing after).

Exact timing/procedures can vary by test center and whether your test is paper or digital. The section order for the main ACT is standard: English → Math → Reading → Science.

Calculator / materials policies (high-yield)

• Calculator: allowed only on Math and must be on the ACT approved list (no computer algebra systems, no QWERTY “calculator” devices). Bring fresh batteries.
• Science section: you typically do not need a calculator; if arithmetic appears, it’s designed to be mental/estimation.
• What you can generally use: #2 pencils (paper test), eraser, acceptable calculator (Math), snacks/drink for breaks.
• What’s generally prohibited: phones, smartwatches, notes, unapproved calculators. (Policies are strict—assume anything “smart” is a no.)

Scoring & What You Need

How ACT scoring works

• Each multiple-choice section yields a raw score = # correct.
• Raw score converts to a scaled score 1–36 for each section.
• Composite score = average of English, Math, Reading, Science scaled scores, rounded to the nearest whole number.
• Writing (optional): separate 2–12 score (from trained readers) and separate reporting; it does not change your 1–36 Composite.

Guessing policy (important)

• No penalty for wrong answers.
• If you can eliminate even one choice, your odds improve—always bubble something.

“What score do I need?” (depends on your goal)

• ACT isn’t pass/fail. Targets depend on your schools/programs/scholarships.
• Practical rule:
  • Competitive state schools: often mid‑20s.
  • Highly selective schools: often 30+.

Score distribution / percentiles (use cautiously)

• ACT publishes annual percentile ranks (“national ranks”). These shift slightly each year.
• Stable takeaway: ~19–20 has historically been around the national average Composite.

Don’t obsess over exact curves the night before—your job is maximizing raw points with pacing and accuracy.

Section-by-Section Strategy

English (45 min / 75 Q ≈ 36 sec/Q)

1. Think “editor,” not “reader.” You’re fixing sentences/structure, not savoring the passage.
2. Prefer the shortest answer that is grammatically correct (but don’t delete necessary meaning).
3. Read 1–2 sentences around the underlined portion to catch logic, transitions, and pronouns.
4. Rhetorical questions (purpose/organization): read the full paragraph quickly, then pick the option that best matches the author’s goal.
5. Pacing: every ~9 minutes you should finish ~15 questions.

Math (60 min / 60 Q = 1 min/Q)

1. Order of difficulty increases. Bank time early: aim to reach Q40 by ~35 minutes.
2. Don’t marry a problem. If you’re stuck at 60–75 seconds, mark/guess and move.
3. Backsolve + plug in when choices are numbers (often faster than algebra).
4. Know your calculator’s role: speed arithmetic/graphing checks, but set up the math first.
5. Pacing checkpoints:
   • 30 min left: around Q30
   • 15 min left: around Q45

Reading (35 min / 40 Q ≈ 52 sec/Q)

1. Your goal is locating, not memorizing. Most answers are verbatim or paraphrase.
2. Choose one method and commit:
   • Passage-first skimming: 2–3 min quick read + 5–6 min questions, or
   • Questions-first: go straight to line-referenced/detail questions, then main idea.
3. Line references are gold. If an answer isn’t supported by text evidence, it’s out.
4. Hard passage? Don’t panic—do easier ones first if you’re allowed to flip freely.
5. Timing: ~8–9 minutes per passage.

Science (35 min / 40 Q = 52 sec/Q) — the main event

Science is data literacy under time pressure, not memorized biology.

Passage types you’ll see (and how to attack)

1. Data Representation (graphs/tables): fastest points if you read visuals correctly.
2. Research Summaries (experiments): track variables + what changed.
3. Conflicting Viewpoints: read like Reading—compare claims, assumptions, predictions.

Your default pacing plan

• Expect ~6–7 passages total.
• Target:
  • Data Rep / Research Summaries: ~4–5 minutes each
  • Conflicting Viewpoints: ~7–9 minutes (it’s reading-heavy)

If you’re behind: skip Conflicting Viewpoints, harvest points from data/experiment passages, then return.

The high-yield Science workflow (do this every passage)

1. Start with the questions (yes, usually). Let them tell you what to look at.
2. Go straight to the referenced figure/table (Figure 1, Table 2, etc.).
3. Read titles, axes, units before interpreting trends.
4. Answer using the data, not “what you remember from class.” Outside knowledge is minimal.
5. When in doubt, estimate. ACT loves “about,” “closest to,” and trend-based reasoning.

Science question types (micro-strategies)

• “According to Figure/Table…” (direct lookup):
  • Find the exact x-value/condition, read y-value.
  • Watch units and scale (log scale sometimes appears).
• Trend / relationship (“as X increases, what happens to Y?”):
  • Identify direction (+/−/no change) and whether it’s linear/curved.
• Interpolation vs. extrapolation:
  • Interpolate (inside the data range) is safer.
  • Extrapolate (outside range) = extend the pattern cautiously.
• Experimental design (Research Summaries):
  • Identify Independent Variable (IV), Dependent Variable (DV), controls/constants.
  • Questions often ask: “Why did they do step X?” → it’s usually to control a variable or measure DV reliably.
• Conflicting Viewpoints:
  • Make a quick table: Scientist 1 vs Scientist 2: what they agree/disagree on.
  • Most questions are: who would agree with statement X? what would each predict if condition changes?

Writing (Optional, 40 min) — if you’re taking it

1. Pick a clear thesis fast (your position) and stick to it.
2. Use a simple 4–5 paragraph structure: intro, 2–3 body paragraphs, conclusion.
3. Bring examples (history, current events, literature, personal observation) and connect them explicitly to your claim.
4. Clarity beats fancy. Short, controlled sentences > risky vocabulary.

Highest-Yield Content Review

ACT Science: passage types + what they test (80/20)

The “Science section” is mostly these skills

Mini-formulas that actually show up in Science-style questions

(Usually embedded in the passage, but you should recognize them instantly.)

Science graphs: the 10-second checklist

• Title: what’s being measured?
• X-axis: usually IV (what they changed)
• Y-axis: usually DV (what responded)
• Units: the hidden trap
• Scale: starts at 0? uses powers of 10? uneven intervals?
• Legend/key: which line/bar is which group?

High-frequency Science vocabulary (ACT-level)

Common Pitfalls & Traps

1. Boldly reading the whole Science passage first

   • What goes wrong: you burn 60–90 seconds “understanding” info you won’t be asked.
   • Why it’s wrong: questions usually point you to a specific figure/table.
   • Fix: go questions → figure; read only the lines needed.

2. Ignoring units and axis labels

   • What goes wrong: you pick the right number with the wrong unit (or wrong axis).
   • Why it’s wrong: ACT often distinguishes choices by units or scale.
   • Fix: before answering, say out loud (in your head): “This is grams at 20°C.”

3. Mixing up IV and DV (cause vs result)

   • What goes wrong: you interpret the relationship backwards.
   • Why it’s wrong: many questions hinge on “what was changed” vs “what was measured.”
   • Fix: label fast: IV = condition, DV = measurement.

4. Assuming outside science knowledge overrides the data

   • What goes wrong: you choose what “should” happen in real life, not what the figure shows.
   • Why it’s wrong: ACT rewards using given information.
   • Fix: if the graph says it increased, it increased—even if it feels counterintuitive.

5. Falling for “extreme language” answers in Conflicting Viewpoints

   • What goes wrong: you pick “always/never/proves” when authors used cautious claims.
   • Why it’s wrong: viewpoints are usually conditional and limited.
   • Fix: match tone and scope (often “may,” “suggests,” “under these conditions”).

6. Not matching the correct experimental condition

   • What goes wrong: you read the wrong row/line because conditions are similar.
   • Why it’s wrong: experiments vary by one detail (pH 6 vs pH 8; Trial 1 vs Trial 2).
   • Fix: circle/track the exact condition in the question, then locate it in the table.

7. Over-extrapolating beyond the data range

   • What goes wrong: you assume the trend continues forever.
   • Why it’s wrong: ACT may expect “cannot be determined” if it’s outside tested values.
   • Fix: check whether the x-value is inside the measured range.

8. Getting stuck on one brutal passage

   • What goes wrong: you lose time and miss easy points later.
   • Why it’s wrong: all questions are worth the same.
   • Fix: if a passage is a time-sink, guess, mark, move, return if time.

9. Bubbling strategy failure (end-of-test panic)

   • What goes wrong: you leave blanks or misbubble under stress.
   • Why it’s wrong: no penalty for guessing, but blanks are guaranteed wrong.
   • Fix: if time is low, do a rapid bubble pass with best guesses.

Memory Aids & Mnemonics

Important Dates & Deadlines (verify on ACT.org)

ACT test dates and deadlines change by year and by location (and digital vs paper availability). To avoid giving you incorrect dates, use this reliable approach:

Only trust the dates on your ACT admission ticket and the ACT.org “Registration” pages.

Last-Minute Tips & Test Day Checklist

Tonight (highest ROI)

• Skim this sheet + your mistake log (not new content).
• Do a 10-minute Science drill mentally: practice the loop “question → figure → units → answer.”
• Set a pacing mantra for Science: “Move on at 60 seconds.”
• Pack everything now.

What to bring

• Printed admission ticket (if required for your test format)
• Acceptable photo ID
• #2 pencils + good eraser (paper test)
• Approved calculator + spare batteries (Math)
• Snack + water for break
• Simple analog watch (no smart features) if allowed by your center

What NOT to bring (or keep powered off and put away per rules)

• Phone, smartwatch/fitness tracker, notes, scratch paper (unless explicitly provided/allowed), unapproved calculator

During ACT Science (your in-the-moment checklist)

• Start with the questions.
• Go to the figure/table immediately.
• Read axes + units every time.
• If confused: answer what is asked (not what you wish it asked).
• Guess and move if you hit a wall.

Calm under pressure

• If you blank: take one slow breath and do the smallest next step: find Figure X.

You don’t need to “know science”—you need to read what they give you faster and cleaner than everyone else.