Work through 16 original questions across Reading, Math, Science, and English. Write down your answer before reading each explanation. These are public learning examples, not ATI questions or a validated score predictor.
Try four questions in each subject, then explain why each incorrect option fails. Record the concept behind each mistake. A result such as 12 out of 16 describes only this small set; it cannot be converted into an official TEAS score or an admission probability.
These additional public examples are separate from the book’s 772-question collection. The workspace offers the timed practice formats; this page keeps the teaching explanations available to every reader.
A clinic moved its reminder calls from the morning to the evening. More patients answered, and missed appointments fell during the following month. Staff plan to test text reminders next. What is the main idea?
A. Text messages always work best. B. Changing reminder timing may improve attendance. C. Morning appointments should be canceled. D. All missed appointments are preventable.
Answer: B. Both the change in contact rate and the change in attendance support this limited summary. A describes an untested method; C is never proposed; D claims more than the passage establishes.
A report states that 72 of 90 participants completed a workshop. Which statement is directly supported?
A. Most participants enjoyed it. B. Twenty participants left early. C. Eighty percent completed it. D. Completion guarantees employment.
Answer: C. Divide 72 by 90 to obtain 0.8, or 80%. The report measures completion, not satisfaction or employment. Eighteen, not twenty, did not complete it; their reason is unknown.
Instructions say: label the container, collect the sample, seal the lid, and record the collection time. Which action immediately precedes recording the time?
A. Label the container. B. Collect the sample. C. Seal the lid. D. Deliver the sample.
Answer: C. Preserve the order as written. Labeling and collection occur earlier, and delivery is not part of this sequence. For procedural passages, underline sequence words before answering.
Students who voluntarily attended tutoring scored higher than students who did not attend. Why does this observation alone fail to prove tutoring caused the difference?
A. No one can measure scores. B. The groups may have differed before tutoring. C. Tutoring cannot help anyone. D. Higher scores are impossible.
Answer: B. Self-selection can introduce differences in motivation, prior knowledge, or available study time. The result is consistent with a tutoring benefit, but does not isolate its causal effect.
A study group grows from 24 to 30 students. What is the percent increase?
A. 6% B. 20% C. 25% D. 30%
Answer: C. The increase is 30 − 24 = 6. Use the original group as the denominator: 6 ÷ 24 × 100 = 25%. Dividing by 30 gives the increase as a share of the new group, which is a different quantity.
Solve 3(x − 2) = 21.
A. 5 B. 7 C. 9 D. 23
Answer: C. Divide both sides by 3 to get x − 2 = 7, then add 2: x = 9. Check by substitution: 3(9 − 2) = 21. Dividing before distributing is efficient here because the whole left side is multiplied by 3.
A container holds 0.75 liters. How many milliliters is that?
A. 7.5 mL B. 75 mL C. 750 mL D. 7,500 mL
Answer: C. One liter equals 1,000 milliliters. Multiply 0.75 L by 1,000 mL/L to obtain 750 mL. The liter units cancel. A smaller unit should produce a larger numerical count for the same volume.
Find the median of 12, 7, 10, 19, and 7.
A. 7 B. 10 C. 11 D. 12
Answer: B. Sort the values: 7, 7, 10, 12, 19. The third of five values is 10. The mean is 11 and the mode is 7; neither answers a question asking for the median.
A dissolved substance moves across a permeable membrane from a region of higher concentration to a region of lower concentration without an energy input. What process is described?
A. Diffusion B. Active transport C. Mitosis D. Transcription
Answer: A. Diffusion follows a concentration gradient. Active transport can move substances against a gradient using energy. Mitosis concerns nuclear division; transcription produces RNA from a DNA template.
Which vessel carries blood from the right ventricle toward the lungs?
A. Aorta B. Pulmonary artery C. Pulmonary vein D. Superior vena cava
Answer: B. The right ventricle sends blood into the pulmonary artery. Arteries carry blood away from the heart; their name does not mean they always carry oxygen-rich blood. Pulmonary veins return blood from the lungs to the left atrium.
A student tests how light duration affects plant growth. All plants are the same species and receive the same soil, water, and temperature. What is the independent variable?
A. Plant height after two weeks B. Soil type C. Hours of light per day D. Plant species
Answer: C. The independent variable is the factor deliberately changed. Growth is the dependent outcome. Species, soil, water, and temperature are controlled so they are less likely to explain differences in growth.
Compared with a solution at pH 5, a solution at pH 3 has approximately how much greater hydrogen ion concentration?
A. 2 times B. 10 times C. 100 times D. 1,000 times
Answer: C. Each one-unit decrease in pH represents a tenfold increase in hydrogen ion concentration. A two-unit decrease corresponds to 10 × 10 = 100 times. The pH scale is logarithmic, not a linear difference of two.
Choose the standard sentence.
A. The list of supplies are on the desk. B. The list of supplies is on the desk. C. The list of supplies were on the desk. D. The list of supplies be on the desk.
Answer: B. The singular subject is list. The prepositional phrase of supplies does not change its number, so the present-tense verb is is. Temporarily remove the prepositional phrase to hear the subject–verb pair.
Which sentence correctly joins two independent clauses?
A. The lab closed, we returned tomorrow. B. The lab closed we returned tomorrow. C. The lab closed; we returned the next day. D. The lab closed, and, we returned tomorrow.
Answer: C. A semicolon can join two closely related independent clauses. A comma alone cannot. An alternative is a comma plus a coordinating conjunction: The lab closed, so we returned the next day.
One student owns a notebook. Which phrase correctly expresses ownership?
A. the students notebook B. the students’ notebook C. the student’s notebook D. the student notebook’s
Answer: C. Add apostrophe-s to the singular owner, student. Students’ would identify plural owners. Place the apostrophe on the owner rather than on the object being owned.
In the sentence “Because the instructions were ambiguous, the two readers followed different procedures,” what does ambiguous most nearly mean?
A. Open to more than one interpretation B. Extremely short C. Written in alphabetical order D. Scientifically proven
Answer: A. The different interpretations provide the contextual clue. The sentence does not establish length, ordering, or scientific validity. Test an unfamiliar word by substituting each proposed meaning into the whole sentence.
Published by TEASPATH, the study-guide project of Matthew D Giron MBA. Independent educator and assessment review is pending. The explanations are educational practice material, not clinical instructions.
TEASPATH is independent of ATI. ATI TEAS® and TEAS® are registered trademarks of Assessment Technologies Institute, L.L.C., which is not affiliated with and does not endorse TEASPATH. Practice results are not official scores or admission predictions.
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