ATI TEAS 7
TEAS 7 science study guide free
1. Which of the following is an example of a chemical property of matter?
- A. Boiling point
- B. Flammability
- C. Density
- D. Conductivity
Correct answer: B
Rationale: Flammability is an example of a chemical property of matter because it describes how a substance reacts with oxygen in the air to produce heat and light. Chemical properties involve the ability of a substance to undergo a chemical change or reaction, such as burning. Boiling point, density, and conductivity are examples of physical properties, not chemical properties. Boiling point is the temperature at which a substance changes from a liquid to a gas, density is the mass of a substance per unit volume, and conductivity is the ability to conduct electricity. Therefore, flammability best exemplifies a chemical property as it pertains to the substance's reaction with oxygen, while the other options are physical properties that describe characteristics without changing the substance's chemical composition.
2. The Black Panther Party (BPP) was another activist group that formed around the same time as and was similar in function to the NAACP. What revision best improves this sentence?
- A. NO CHANGE
- B. was another activist group that
- C. had a lot of members that
- D. was another school that
Correct answer: B
Rationale: Describing the BPP as 'another activist group' provides clarity and relevance. Choice B correctly identifies the Black Panther Party as an activist group, aligning with its historical context and function. Choices C and D introduce irrelevant or inaccurate information, making them incorrect. Choice A, 'NO CHANGE,' leaves the sentence vague and does not provide the necessary clarification about the nature of the Black Panther Party.
3. What is the range in the number of houses sold per year?
- A. 20
- B. 25
- C. 29
- D. 35
Correct answer: C
Rationale: The range in the number of houses sold per year is calculated by subtracting the minimum number of houses sold from the maximum number of houses sold. In this case, the range is 42 (maximum) - 11 (minimum) = 31, not 29 as stated in the original rationale. Therefore, choice C (29) is incorrect. Choices A (20), B (25), and D (35) are also incorrect as they do not reflect the correct range of houses sold per year, which is 31.
4. What is crucial in technical writing?
- A. Using informal language to connect with the audience.
- B. Emphasizing your expertise with complex jargon.
- C. Explaining concepts clearly and concisely for diverse readers.
- D. Prioritizing creativity and artistic flair in your writing style.
Correct answer: C
Rationale: In technical writing, the primary goal is to explain complex concepts clearly and concisely for diverse readers. Using informal language (Choice A) can undermine the professionalism and clarity expected in technical documents. Emphasizing expertise with complex jargon (Choice B) may alienate readers who are not familiar with technical terminology. Prioritizing creativity and artistic flair (Choice D) may be misleading in technical writing, as the focus should be on clarity and accuracy rather than creative expression. Therefore, the correct choice is to explain concepts clearly and concisely for diverse readers, ensuring that the content is easily understandable and accessible.
5. What type of reaction is represented by the following equation: Fe2O3 (s) + 3H2 (g) -> 2Fe (s) + 3H2O (g)?
- A. Combustion
- B. Decomposition
- C. Single displacement
- D. Redox reaction
Correct answer: C
Rationale: The correct answer is C: Single displacement. This reaction is a single displacement reaction because the iron (Fe) in Fe2O3 is displaced by the hydrogen (H) in H2 to form Fe and H2O. In single displacement reactions, one element replaces another in a compound. Choice A, Combustion, involves a reaction with oxygen typically producing heat, light, and often a flame. Choice B, Decomposition, is when a compound breaks down into simpler substances. Choice D, Redox reaction, involves both reduction and oxidation reactions happening simultaneously, which is not the case in the provided equation.
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