What is the typical way a solid would turn to a liquid and then to a gas?
A. Vaporizing, then melting
B. Melting, then freezing
C. Vaporizing, then freezing
D. Melting, then vaporizing
A solid turns into a liquid by melting, and a liquid turns into gas by vaporization.
Therefore, the Correct Answer is D.
More Questions on TEAS 7 Science
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Q #1: Your class is competing with another class to determine who has the best plant color. Your class decides to test a couple of solutions to determine which would be best for overall plant color before competing. Starting with four sets of four plants, the class decides to water each set with a different solution. They water them once a week with 200ml of the following solutions: water, diet soda, 1% bleach solution, and a 1% salt solution. All plants are placed in the window that receives the recommended amount of light. After a month of testing, your class notices that only two plants are alive, but one of those two does not look healthy. Based on these results, which of the following would be a good hypothesis to design the next experiment around?
A. Plants need more than 200 mL of liquid per week.
B. Salt has no impact on plant health.
C. Salt contains useful nutrients for plants.
D. A combination of the solutions tested will produce healthier plants.
Answer Explanation
Since only 2 out of the initial 16 plants survived the whole month, it would be reasonable to test variables that were shared by all the plants. As such, the amount of liquid the plants need would be a good follow-up experiment. It is not specified as to which plants survived, so there is not enough information to think that testing the impact of salt is warranted. Additionally, since almost all the plants died, it is not reasonable to assume that a combination of the solutions would have an impact.
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Q #2: Which is NOT a major type of carbohydrate?
A. Monosaccharides
B. Disaccharides
C. Pentasaccharides
D. Polysaccharides
Answer Explanation
There are four major types of carbohydrates: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Monosaccharides (mono- means one) are made up of one sugar molecule, while disaccharides (di- means two) are made up of two sugar molecules. Oligosaccharides (oligo- means few) are usually less than a dozen sugar molecules, while polysaccharides (poly-means many) are usually more than a dozen sugar molecules.
Pentasaccharides are not a type of carbohydrate.
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Q #3: Which of the following is NOT provided as a result of the valid research and observations recorded by scientists?
A. A better understanding of the physical world
B. The ability to predict possible outcomes affected by actions
C. The ability to prevent earthquakes and other natural disasters
D. The creation of various substances and technologies that enhance our world
Answer Explanation
Scientists make observations, gather data, and complete research over many years in order to compile knowledge that will provide insight into future disasters, such as earthquakes, storms, and global warming. Although science can be used to predict earthquakes and other natural disasters, there is currently no way of preventing them from occurring.
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Q #4: Which of the following is an example of a chemical change?
A. Releasing compressed gas to make a bottle-rocket launch
B. Adding water to clay to make slip
C. Crystalizing honey to make candy
D. Including baking soda in a recipe to make it less sour
Answer Explanation
A chemical change involves a chemical reaction and new substances are produced. When baking soda is added to something sour (acidic) it neutralizes the acid and forms new molecules, in this case carbon dioxide and water. A physical change does not produce new substances. Phase changes such as evaporation and sublimation are physical changes. Changing the ratio of ingredients in a mixture, like adding more water to clay, does not change it chemically, but it can change some of the mixture's physical properties.
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Q #5: Which of the following statements is FALSE?
A. An organelle is a specialized structure in a cell, such as a ribosome.
B. An organ is made up of similar tissues that perform the same function.
C. Organ systems are two or more organs performing similar functions.
D. A tissue contains a single cell type that works to perform a specific function.
Answer Explanation
A tissue contains a variety of cell types that work in conjunction to perform similar functions.
The cells are similar in structure despite being located throughout the body. There are four types of tissues in the human body: connective, epithelial, muscle, and nervous system tissues.
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Q #6: A doctor needs to convince his boss to approve a test for a patient. Which statement below best communicates a scientific argument that justifies the need for the test?
A. The patient looks like he needs this test.
B. The doctor feels that the patient needs this test.
C. The patient's symptoms and health history suggest that this test will enable the correct diagnosis to help the patient.
D. The patient has excellent insurance that will pay for several tests, and the doctor would like to run as many tests as possible.
Answer Explanation
A scientific argument should be based on measurable and observable facts such as the patient's current symptoms and health history. Discussing the patient's appearance or the doctor's feelings does not communicate a scientific argument. While insurance may be a factor in most healthcare systems, the status of the patient's Insurance does not communicate a scientific argument that justifies the need for the test
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Q #7: What type of mutation is represented by the following sequence? Original: 123456 Mutated: 154326
A. Breakage
B. Deletion
C. Insertion
D. Inversion
Answer Explanation
An inversion mutation is represented in the sequence 1 5 4 3 2 6. An inversion error is a type of mutation where an entire sequence of DNA is reversed. In this case, 2 3 4 5 has been reversed to 5 4 3 2.
Breakage, choice A, in a gene can mess up its function entirely or lead to a translocation of genetic information. Choice B, deletion, is when a section of DNA is omitted or lost.
Choice C, Insertion, is when an extra base pair is added to a DNA sequence. Deletions and insertions can lead to a frameshift effect where entire sequences are thrown off because one nucleotide is wrong.
This could result in coding for the wrong amino acid and non-functioning proteins.
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Q #8: What is a hypothetical explanation for an occurrence that is based on prior knowledge called?
A. Independent variable
B. Dependent variable
C. Trial
D. Hypothesis
Answer Explanation
A hypothesis is the use of prior knowledge in order to provide a hypothetical explanation for why something may or may not occur. A hypothesis can be proved wrong or right based on the results of the experiment and repeated trials.
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Q #9: Which of the below is the best definition for the term circulation?
A. The transport of oxygen and other nutrients to the tissues via the cardiovascular system
B. The force exerted by blood against a unit area of the blood vessel walls
C. The branching air passageways inside the lungs
D. The process of breathing in
Answer Explanation
Circulation is transporting oxygen and other nutrients to the tissues via the cardiovascular system. Choice B refers to blood pressure. Bronchi are the branching airways inside the lungs, while inhalation refers to the process of breathing in.
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Q #10: Which of the heart chambers is the largest?
A. Left atrium
B. Right atrium
C. Left ventricle
D. Right ventricle
Answer Explanation
Of the four heart chambers, the left ventricle is the largest. When it contracts, it pushes blood out to the organs and extremities of the body. The right ventricle pushes blood into the lungs. The atria, on the other hand, receive blood from the outlying parts of the body and transport it into the ventricles.
The basic process works as follows: Oxygen-poor blood fills the right atrium and is pumped into the right ventricle. from which it is pumped into the pulmonary artery and on to the lungs. In the lungs, this blood is oxygenated. The blood then reenters the heart at the left atrium, which, when full, pumps into the left ventricle. When the left ventricle is full, blood is pushed into the aorta and on to the organs and extremities of the body.
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