OAE Integrated Science Practice Test

Unofficial practice questions spread like the four domains of Ohio's OAE Integrated Science assessment, code 024.

A student measures the volume of a liquid five times: 24, 25, 25, 26 and 30 mL. What is the median?

Pick an answer, then press Check answer. Then you see Correct or Not quite, with the reason. Keys: A to D pick, Enter checks.

Print covers the next 48 questions. Share this set copies a link to the same questions in the same order.

Exam mode: 48 questions, 58 minutes.

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Unofficial practice questions, not affiliated with the Ohio State Board of Education or Evaluation Systems, Pearson. Bank checked October 12, 2026.

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All 48 questions

Domain I: Nature of science 9

  • A reaction in a school laboratory gives off a toxic vapor. Where should it be carried out? Wikipedia, "Fume hood". Written to OAE Integrated Science (024) framework, competency 0001
  • A report says a fertilizer works because the fertilized plants grew. Half of the identical plants were left unfertilized. Why does the reader need their result? Wikipedia, "Scientific control". Written to OAE Integrated Science (024) framework, competency 0003
  • A student measures the volume of a liquid five times: 24, 25, 25, 26 and 30 mL. What is the median? Wikipedia, "Median". Written to OAE Integrated Science (024) framework, competency 0001
  • Before a journal publishes a research paper, other experts in the field evaluate it. What is this step called? Wikipedia, "Peer review". Written to OAE Integrated Science (024) framework, competency 0003
  • The Haber process makes ammonia from the nitrogen in air on an industrial scale. What is most of that ammonia used for? Wikipedia, "Haber process". Written to OAE Integrated Science (024) framework, competency 0003
  • Water in a glass graduated cylinder curves down at the center. Where is the volume read? Wikipedia, "Meniscus (liquid)". Written to OAE Integrated Science (024) framework, competency 0001
  • What makes a hypothesis a scientific one? Wikipedia, "Hypothesis". Written to OAE Integrated Science (024) framework, competency 0002
  • Which scientist, honored for work on radioactivity and for discovering radium and polonium, is the only person to win Nobel Prizes in two different sciences? Wikipedia, "Marie Curie". Written to OAE Integrated Science (024) framework, competency 0002
  • Whose X-ray diffraction images of DNA, made at King's College London, were key evidence for the double helix? Wikipedia, "Rosalind Franklin". Written to OAE Integrated Science (024) framework, competency 0002
Show all 48 questions (39 more)

Domain II: Physical science 18

  • A sample of gas is held at constant pressure while its temperature is raised from 300 K to 600 K. What happens to its volume? Wikipedia, "Charles's law". Written to OAE Integrated Science (024) framework, competency 0004
  • A student lifts a 10 N book straight up through 2 m at steady speed. How much work does the student do on the book? Wikipedia, "Work (physics)". Written to OAE Integrated Science (024) framework, competency 0007
  • Air warmed by a heater rises and cooler air sinks to take its place. Which kind of heat transfer is this? Wikipedia, "Convection (heat transfer)". Written to OAE Integrated Science (024) framework, competency 0007
  • Heat flows steadily into ice at 0 °C, yet its temperature stays at 0 °C until all of it has melted. What is the heat taken up in this way called? Wikipedia, "Latent heat". Written to OAE Integrated Science (024) framework, competency 0006
  • How much heat raises the temperature of 50 g of water by 10 °C? Take the specific heat of water as 4.18 J per gram per °C. Wikipedia, "Specific heat capacity". Written to OAE Integrated Science (024) framework, competency 0006
  • In Bohr's model of the hydrogen atom, what goes with an electron's jump from one orbit to another? Wikipedia, "Bohr model". Written to OAE Integrated Science (024) framework, competency 0004
  • Light stays inside a glass optical fiber even where the fiber bends. Which effect keeps it in? Wikipedia, "Total internal reflection". Written to OAE Integrated Science (024) framework, competency 0008
  • The molar mass of water is about 18 g/mol. How many moles of water are in 54 g? Wikipedia, "Molar mass". Written to OAE Integrated Science (024) framework, competency 0005
  • N2 + 3 H2 ⇌ 2 NH3 is at equilibrium in a cylinder, all as gases. The pressure is lowered by enlarging the volume. Which way does the equilibrium shift? Wikipedia, "Le Chatelier's principle". Written to OAE Integrated Science (024) framework, competency 0005
  • Road crews spread salt on icy roads. Which colligative property explains why the ice melts? Wikipedia, "Freezing-point depression". Written to OAE Integrated Science (024) framework, competency 0004
  • Sound travels through air at about 340 m/s. What is the wavelength of a tone of 170 Hz? Wikipedia, "Wavelength". Written to OAE Integrated Science (024) framework, competency 0008
  • Two 6 Ω resistors are wired in series across a 12 V battery. What current flows? Wikipedia, "Series and parallel circuits". Written to OAE Integrated Science (024) framework, competency 0009
  • Two identical bulbs are wired in parallel across a battery, and one burns out. What happens to the other bulb? Wikipedia, "Series and parallel circuits". Written to OAE Integrated Science (024) framework, competency 0009
  • What does a step-up transformer do? Wikipedia, "Transformer". Written to OAE Integrated Science (024) framework, competency 0009
  • Which machine does the first law of thermodynamics rule out? Wikipedia, "First law of thermodynamics". Written to OAE Integrated Science (024) framework, competency 0006
  • Which observation showed that light behaves as particles as well as waves? Wikipedia, "Photoelectric effect". Written to OAE Integrated Science (024) framework, competency 0008
  • Why does raising the temperature make most chemical reactions go faster? Wikipedia, "Collision theory". Written to OAE Integrated Science (024) framework, competency 0005
  • With a lever, an effort of 50 N lifts a load of 200 N. What is the mechanical advantage? Wikipedia, "Mechanical advantage". Written to OAE Integrated Science (024) framework, competency 0007

Domain III: Life science 12

  • A human body cell has 46 chromosomes. How many chromosomes are in each cell produced by meiosis? Wikipedia, "Meiosis". Written to OAE Integrated Science (024) framework, competency 0010
  • After a meal, which hormone lowers blood glucose by helping body cells take the glucose up? Wikipedia, "Insulin". Written to OAE Integrated Science (024) framework, competency 0011
  • Both parents carry one dominant and one recessive allele of a gene (Bb). What is the chance that a child of theirs is also Bb? Wikipedia, "Punnett square". Written to OAE Integrated Science (024) framework, competency 0012
  • During translation, which molecule brings amino acids to the ribosome? Wikipedia, "Transfer RNA". Written to OAE Integrated Science (024) framework, competency 0012
  • In population ecology, what is negative density dependence? Wikipedia, "Density dependence". Written to OAE Integrated Science (024) framework, competency 0013
  • What is a keystone species? Wikipedia, "Keystone species". Written to OAE Integrated Science (024) framework, competency 0013
  • What is a prion? Wikipedia, "Prion". Written to OAE Integrated Science (024) framework, competency 0011
  • Which biome has permafrost, a short growing season and almost no trees? Wikipedia, "Tundra". Written to OAE Integrated Science (024) framework, competency 0013
  • Which mass extinction, about 66 million years ago, ended the time of the non-avian dinosaurs? Wikipedia, "Cretaceous–Paleogene extinction event". Written to OAE Integrated Science (024) framework, competency 0012
  • Which of these taxonomic ranks is the broadest? Wikipedia, "Taxonomic rank". Written to OAE Integrated Science (024) framework, competency 0011
  • Which structure is present in both prokaryotic and eukaryotic cells? Wikipedia, "Ribosome". Written to OAE Integrated Science (024) framework, competency 0010
  • Which two substances are made by photosynthesis and used up by aerobic cellular respiration? Wikipedia, "Photosynthesis". Written to OAE Integrated Science (024) framework, competency 0010

Domain IV: Earth and space science 9

  • About how old is Earth? Wikipedia, "Age of Earth". Written to OAE Integrated Science (024) framework, competency 0014
  • From what does a hurricane draw its energy? NOAA National Ocean Service, "How do hurricanes form?". Written to OAE Integrated Science (024) framework, competency 0015
  • Two radio astronomers found it by accident in 1964, and it is the key experimental evidence for the Big Bang. What is it? Wikipedia, "Cosmic microwave background". Written to OAE Integrated Science (024) framework, competency 0016
  • What forms where an oceanic plate sinks beneath a continental plate? U.S. Geological Survey, This Dynamic Earth, "Understanding plate motions". Written to OAE Integrated Science (024) framework, competency 0014
  • What is a moraine? Wikipedia, "Moraine". Written to OAE Integrated Science (024) framework, competency 0014
  • What is an estuary? NOAA National Ocean Service, "What is an estuary?". Written to OAE Integrated Science (024) framework, competency 0015
  • Which coastal landform is a long, narrow island of sand that runs parallel to the mainland? Wikipedia, "Barrier island". Written to OAE Integrated Science (024) framework, competency 0015
  • Which of these planets is a gas giant? Wikipedia, "Gas giant". Written to OAE Integrated Science (024) framework, competency 0016
  • Why does the Moon show phases? Wikipedia, "Lunar phase". Written to OAE Integrated Science (024) framework, competency 0016

How this list was compiled: Our own questions, written to the assessment framework for Ohio Assessments for Educators field 024, Integrated Science, read 2026-10-12 on the program's site (https://www.oh.nesinc.com/CONTENT/STUDYGUIDE/OH_SG_OBJ_024.htm; test page https://www.oh.nesinc.com/TestView.aspx?f=HTML_FRAG/OH024_TestPage.html): 150 multiple-choice questions in 180 minutes, passing score 220; Nature of Science (competencies 0001 to 0003, 19%), Physical Science (0004 to 0009, 37%), Life Science (0010 to 0013, 25%) and Earth and Space Science (0014 to 0016, 19%). The bank holds 3 questions for each of the 16 competencies. Every fact was read on 2026-10-12 in the public page the question names: the named Wikipedia article, the U.S. Geological Survey's This Dynamic Earth, or a NOAA National Ocean Service fact page. Licence: Questions, choices and explanations are original work of this site.

How it works

This free OAE Integrated Science practice test has 48 questions of our own, three for each of the 16 competencies of assessment 024. It is unofficial practice for science teachers and is not affiliated with the Ohio State Board of Education or Evaluation Systems, Pearson.

Read the full guide

OAE Integrated Science study guide: the four domains

By the framework at oh.nesinc.com, read October 12, 2026, the questions weigh Nature of Science 19%, Physical Science 37%, Life Science 25%, and Earth and Space Science 19%. Physical science runs from atomic models to circuits and is the largest share: 18 of the 48 questions here.

Timing and exam mode

Integrated Science candidates get 3 hours for 150 multiple-choice questions, after a 15-minute tutorial. Exam mode here keeps that pace: 58 minutes for 48 questions.

The license behind test 024

Ohio asks for Integrated Science (024) from candidates for the Adolescence to Young Adult (7–12) Integrated Science license, who also sit the Assessment of Professional Knowledge 003, by the program's table of license types.

  • The test page lists an on-screen scientific calculator, a formulas and constants page and a periodic table. Work the calculations here with a table open.

Questions and answers

Is this OAE practice Integrated Science test free?

Yes. There is no account and no fee, and all 48 questions were written here from the published framework. Each explanation names a page where you can check it: Wikipedia, the U.S. Geological Survey or NOAA. No item of the real assessment is used.

How long is the OAE Integrated Science test?

150 questions, all multiple-choice, answered in 3 hours. According to the test page, an assessment may include questions being evaluated for future administrations, and those do not affect your score.

What score passes OAE Integrated Science?

220 on a scale that runs from 100 to 300. Minimum passing scores are set by Ohio's State Board of Education, and the scaled total depends on how many multiple-choice questions are answered correctly.

Can the OAE Integrated Science test be taken at home?

Yes. The test page for Integrated Science (024) offers an online proctor in one-week testing windows every month, with no breaks allowed. Test centers take appointments year round.

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