ILTS Science: Chemistry (240) Study Guide 2027–2028 | Illinois Chemistry Teacher Certification Prep, 200 Practice Questions (PDF)

Prepare for ILTS Science: Chemistry (240), the Illinois content-area test for the Science endorsement with the Chemistry designation (grades 9-12). The 13 sections follow the four official subareas and their 13 objectives in order, so you study the general-science core (60% of the test) and the chemistry subareas exactly as the test framework lays them out.

What's Inside

• Exam overview: 100 four-choice multiple-choice questions, 3 hours 15 minutes of testing, the 240 passing score on the 100-300 scale, the subarea weights (23%, 37%, 24%, 16%), the on-screen scientific calculator and periodic table, the $110 fee, and the formulas and constants you must know because no reference sheet is listed

• Science Process Skills: the eight practices, investigations and data, measurement and significant figures, lab safety (GHS, SDS, NFPA 704, storage and waste), crosscutting concepts and reading in the science classroom

• Disciplinary Core Ideas: chemistry, physics, biology, Earth and space and environmental science at the depth the test asks

• Chemistry: atomic structure, periodic trends, bonding and VSEPR, nuclear chemistry, solids and organic compounds, gases and phase changes, solutions, acids, bases and titrations, stoichiometry and redox, thermochemistry, kinetics, equilibrium and electrochemistry

• Worked examples with numbered steps, 16 diagrams and charts (periodic trends, VSEPR shapes, heating curve, phase diagram, titration curves, energy diagrams, galvanic cell and more) and 110+ quick-reference tables

• Classroom scenarios, lab safety notes, NGSS links and myth checks for the teaching questions

• Study schedules, FAQs and test-taking strategies

• 2 practice tests of 100 questions each, 200 questions total, with a complete answer key and an explanation for every question

Format

• Instant digital download (PDF), 8.5 × 11 in

• Clickable table of contents

• Print it or study on a tablet, laptop or phone

Please note: This is a digital product. No physical item will be shipped.

This is an independent study resource and is not affiliated with or endorsed by the Illinois State Board of Education, the Illinois Licensure Testing System or Pearson.