Science TEAS Practice Test

Correct Answer: B

Rationale: The correct answer is B, "Most of them are gases at room temperature." Metals are typically solid at room temperature, not gases. This is because metals have high melting points due to their metallic bonding structure. Choice A is true as most metals are good conductors of heat due to the free movement of electrons. Choice C is also true, as metals are ductile and can be drawn into wires. Choice D is incorrect, as metals do not make up the majority of elements on the periodic table. Nonmetals, metalloids, and noble gases also exist.

Correct Answer: C

Rationale: The correct answer is C: An inference. This is because the statement "someone must have forgotten to water it" is not a direct observation but a conclusion drawn based on the observed condition of the dead flower. In making this statement, the speaker is connecting the lack of water to the flower being dead, which requires logical reasoning. A: A classification - This choice does not apply as the statement does not categorize or group anything. B: An observation - While the initial part of the statement is an observation (the flower is dead), the second part goes beyond just stating what is observed to drawing a conclusion based on that observation. D: A collection - This choice does not make sense in this context as the statement does not involve gathering or assembling items.

Correct Answer: A

Rationale: The correct answer is A: Condensation is the process of changing from a gas to a liquid. This is because condensation occurs when a gas loses heat energy and transitions into a liquid state. The gas molecules slow down and come closer together, forming liquid droplets. Explanation: 1. In condensation, gas molecules lose energy and move closer together. 2. This causes the gas to transition into a liquid state. 3. The process of condensation is commonly observed in everyday situations like when water vapor in the air cools and forms dew on a cold surface. Summary: B: Changing from a liquid to a gas is called evaporation, not condensation. C: Changing from a solid to a liquid is called melting, not condensation. D: Changing from a solid to a gas is called sublimation, not condensation.

Correct Answer: A

Rationale: The correct answer is A: Tachycardia. Tachycardia is a condition where the heart rate is abnormally fast, typically above 100 bpm. In this case, with a heart rate of 118 bpm, it falls under tachycardia. Explanation: 1. Tachycardia refers to an elevated heart rate, which is present in this scenario. 2. Apnea is the absence of breathing, not related to heart rate. 3. Bradycardia is a condition where the heart rate is too slow, typically below 60 bpm. 4. Tachypnea is rapid breathing, not related to heart rate. In summary, tachycardia is the correct term for a heart rate of 118 bpm, making the other options incorrect due to their associations with different physiological functions.

Correct Answer: A

Rationale: The correct answer is A: The human body has evolved to become more resilient to its environment. This statement is not likely to have contributed to the longer life expectancy in the 21st century. Evolution occurs over long periods of time, not within a span of a few hundred years. Advances in medical technology and treatments (B), higher standards of basic cleanliness (C), and the creation of vaccines (D) have all played significant roles in increasing life expectancy by preventing and treating diseases, improving overall health, and reducing mortality rates. These factors are directly linked to improvements in healthcare and sanitation practices, which have had a tangible impact on life expectancy.