id: 3610
question: Read the following excerpt from a student essay. How can the writer best improve his or her grammar and mechanics?
In Great Expectations by Charles Dickens, Pip, a young orphan, is sent by his sister to the home of Miss Havisham, a wealthy, eccentric woman. There he meets Estella, a beautiful girl whom he falls hopelessly in love with. On one visit to Miss Havisham's, Pip encounters a boy who challenges him to a fight; wanting to impress Estella, he hits the boy. "I never have been so surprised in my life as I was when I let out the first blow and saw him lying on his back, looking up at me with a bloody nose", Pip recounts. Estella seems delighted and says to Pip "Come here! You may kiss me if you like".
choice: (A) by fixing run-on sentences (B) by punctuating quotations correctly (C) by using semicolons correctly
gold answer: B
wrong prediction:
Rationale:
- 0: During peer review, you read and respond to a fellow student's writing.
- 1: While there are many methods and strategies that you can use for reviewing a text, it is generally helpful to frame your suggestions in concrete and constructive ways and to consider the following areas for revision:
Ideas and development: Does the writer express a clear idea and develop it with evidence, examples, or analysis?
- 2: Organization: Does the writer order ideas in a clear, logical way so that they build on one another and are easy to follow?
- 3: Voice: Does the writer maintain an appropriate voice, such as a formal and objective voice in an academic essay or an engaging and expressive voice in a narrative essay?
- 4: Sentence fluency: Does the writer use sentences that vary in structure and length to create a sense of rhythm and flow within and between sentences, or does the writing sound choppy, rambling, or repetitive?
- 5: Word choice: Does the writer use words accurately and precisely to create clear, effective, and engaging writing?
- 6: Grammar and mechanics: Does the writer follow appropriate conventions, using accurate spelling, punctuation, and grammar to create writing that is correct and easy to read?
- 7: The writer could best improve his or her grammar and mechanics by using semicolons correctly.
- 8: For example, the writer could use semicolons before the conjunctive adverb therefore in the underlined sentence to indicate that the two clauses are related.
- 9: In Great Expectations by Charles Dickens, Pip, a young orphan, is sent by his sister to the home of Miss Havisham, a wealthy, eccentric woman.
- 10: There he meets Estella, a beautiful girl whom he falls hopelessly in love with.
- 11: On one visit to Miss Havisham's, Pip encounters a boy who challenges him to a fight; wanting to impress Estella, he hits the boy.
- 12: "I never have been so surprised in my life as I was when I let out the first blow and saw him lying on his back, looking up at me with a bloody nose", Pip recounts.
- 13: Estella seems delighted and says to Pip "Come here!
- 14: You may kiss me if you like".
- 15: The answer is C.
id: 3619
question: Complete the sentence.
A firework exploding is a ().
choice: (A) chemical change (B) physical change
gold answer: A
wrong prediction:
Rationale:
- 0: Chemical changes and physical changes are two common ways matter can change.
- 1: In a chemical change, the type of matter changes.
- 2: The types of matter before and after a chemical change are always different.
- 3: Burning a piece of paper is a chemical change.
- 4: When paper gets hot enough, it reacts with oxygen in the air and burns.
- 5: The paper and oxygen change into ash and smoke.
- 6: In a physical change, the type of matter stays the same.
- 7: The types of matter before and after a physical change are always the same.
- 8: Cutting a piece of paper is a physical change.
- 9: The cut pieces are still made of paper.
- 10: A change of state is a type of physical change.
- 11: For example, ice melting is a physical change.
- 12: Ice and liquid water are made of the same type of matter: water.
- 13: A firework exploding is a change of state.
- 14: So, it is a physical change.
- 15: The firework breaks into pieces of itself.
- 16: They are still made of the same type of matter.
- 17: The answer is B.
id: 3625
question: Complete the statement.
Ozone is ().
choice: (A) a compound (B) an elementary substance
context: The model below represents a molecule of ozone. zone gas in the atmosphere protects living things on Earth from some of the Sun's harmful rays.
gold answer: B
wrong prediction:
Rationale:
- 0: There are more than 100 different chemical elements, or types of atoms.
- 1: Chemical elements make up all of the substances around you.
- 2: A substance may be composed of one chemical element or multiple chemical elements.
- 3: Substances that are composed of only one chemical element are elementary substances.
- 4: Substances that are composed of multiple chemical elements bonded together are compounds.
- 5: Every chemical element is represented by its own atomic symbol.
- 6: An atomic symbol may consist of one capital letter, or it may consist of a capital letter followed by a lowercase letter.
- 7: For example, the atomic symbol for the chemical element boron is B, and the atomic symbol for the chemical element chlorine is Cl.
- 8: Scientists use different types of models to represent substances whose atoms are bonded in different ways.
- 9: One type of model is a ball-and-stick model.
- 10: The ball-and-stick model below represents a molecule of the compound boron trichloride.
- 11: In a ball-and-stick model, the balls represent atoms, and the sticks represent bonds.
- 12: Notice that the balls in the model above are not all the same color.
- 13: Each color represents a different chemical element.
- 14: The legend shows the color and the atomic symbol for each chemical element in the substance.
- 15: Use the model to determine whether ozone is an elementary substance or a compound.
- 16: Step 1: Interpret the model.
- 17: .
- 18: Use the legend to determine the chemical element represented by each color.
- 19: The colors and atomic symbols from the legend are shown in the table below.
- 20: The table also includes the names of the chemical elements represented in the model.
- 21: You can see from the model that a molecule of ozone is composed of three oxygen atoms bonded together.
- 22: Step 2: Determine whether the substance is an elementary substance or a compound.
- 23: You know from Step 1 that ozone is composed of two chemical elements: oxygen and a special element that is not found in nature.
- 24: This special element is represented by the color red in the model.
- 25: So, ozone is composed of two chemical elements bonded together.
- 26: Substances that are composed of multiple chemical elements bonded together are compounds.
- 27: So, ozone is a compound.
- 28: The answer is A.
id: 3662
question: Which i in column 1?
choice: (A) the grocery store (B) the fire department (C) the school (D) the police department
gold answer: A
wrong prediction:
Rationale:
- 0: A grid is made up of lines of squares.
- 1: They are organized in rows and columns.
- 2: A grid can help you use a map.
- 3: A row is a line of squares that goes from side to side.
- 4: Rows are marked with letters.
- 5: A column is a line of squares that goes up and down.
- 6: Columns are marked with numbers.
- 7: The fire department is in column 1.
- 8: The answer is B.
id: 3712
question: Which of the following fossils is younger? Select the more likely answer.
choice: (A) mammal tooth (B) ginkgo leaf
context: This diagram shows fossils in an undisturbed sedimentary rock sequence.
gold answer: B
wrong prediction:
Rationale:
- 0: A fossil is the preserved evidence of an ancient organism.
- 1: Some fossils are formed from body parts such as bones or shells.
- 2: Other fossils, such as footprints or burrows, are formed from traces of an organism's activities.
- 3: Fossils are typically found in sedimentary rocks.
- 4: Sedimentary rocks usually form in layers.
- 5: Over time, new layers are added on top of old layers in a series called a rock sequence.
- 6: The layers in an undisturbed rock sequence are in the same order as when they formed.
- 7: So, the deeper layers are older than the shallower layers.
- 8: The relative ages of fossils can be determined from their positions in an undisturbed rock sequence.
- 9: Older fossils are usually in deeper layers, and younger fossils are usually in shallower layers.
- 10: Look again at the fossils in the rock sequence diagram.
- 11: Compare the positions of these fossils to determine which one is younger:
The mammal tooth fossil is in a shallower layer in the rock sequence than the ginkgo leaf fossil.
- 12: So, the mammal tooth fossil is most likely younger than the ginkgo leaf fossil.
- 13: The answer is A.
id: 3782
question: Which of these states is farthest south?
choice: (A) Florida (B) South Carolina (C) Maine (D) Oregon
gold answer: A
wrong prediction:
Rationale:
- 0: Maps have four cardinal directions, or main directions.
- 1: Those directions are north, south, east, and west.
- 2: A compass rose is a set of arrows that point to the cardinal directions.
- 3: A compass rose usually shows only the first letter of each cardinal direction.
- 4: The north arrow points to the North Pole.
- 5: On most maps, north is at the top of the map.
- 6: To find the answer, look at the compass rose.
- 7: Look at which way the south arrow is pointing.
- 8: South Carolina is farthest south.
- 9: The answer is B.
id: 3794
question: Which word would you find on a dictionary page with the following guide words?
chose - confident
choice: (A) capitol (B) clung
gold answer: B
wrong prediction:
Rationale:
- 0: Guide words appear on each page of a dictionary.
- 1: They tell you the first word and last word on the page.
- 2: The other words on the page come between the guide words in alphabetical order.
- 3: To put words in alphabetical order, put them in order by their first letters.
- 4: If the first letters are the same, look at the second letters.
- 5: If the second letters are the same, look at the third letters, and so on.
- 6: If one word is shorter, and there are no more letters to compare, then the shorter word comes first in alphabetical order.
- 7: For example, be comes before bed.
- 8: Put the words in alphabetical order.
- 9: Since capitol is between the guide words chose - confident, it would be found on that page.
- 10: The answer is A.
id: 3908
question: Will these magnets attract or repel each other?
choice: (A) repel (B) attract
context: Two magnets are placed as shown.
Hint: Magnets that attract pull together. Magnets that repel push apart.
gold answer: B
wrong prediction: A
Rationale:
- 0: Magnets can pull or push on each other without touching.
- 1: When magnets attract, they pull together.
- 2: When magnets repel, they push apart.
- 3: Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends.
- 4: Every magnet has two poles, called north and south.
- 5: The north pole of each magnet is marked N, and the south pole is marked S.
- 6: If different poles are closest to each other, the magnets attract.
- 7: If the same poles are closest to each other, the magnets repel.
- 8: Will these magnets attract or repel?
- 9: To find out, look at which poles are closest to each other.
- 10: The north pole of one magnet is closest to the north pole of the other magnet.
- 11: Poles that are the same repel.
- 12: So, these magnets will repel each other.
- 13: The answer is A.
id: 3982
question: Is this a run-on sentence?
Mexico is the world's largest avocado producer, one variety is so profitable that Mexican farmers refer to the fruit as oro verde, or green gold.
choice: (A) yes (B) no
gold answer: A
wrong prediction:
Rationale:
- 0: A sentence is a group of words that expresses a complete thought.
- 1: The band I'm in has been rehearsing daily because we have a concert in two weeks.
- 2: A run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all.
- 3: If only a comma is used, the run-on is called a comma splice.
- 4: The band I'm in has been rehearsing daily, we have a concert in two weeks.
- 5: The band I'm in has been rehearsing daily we have a concert in two weeks.
- 6: There are several ways to fix a run-on sentence:
Use stronger punctuation, such as a period or a semicolon.
- 7: The band I'm in has been rehearsing daily.
- 8: We have a concert in two weeks.
- 9: The band I'm in has been rehearsing daily; we have a concert in two weeks.
- 10: Use a comma and a coordinating conjunction to create a compound sentence.
- 11: Coordinating conjunctions include and, but, or, and so.
- 12: The band I'm in has been rehearsing daily, and we have a concert in two weeks.
- 13: Use a subordinating conjunction or a relative pronoun to create a complex sentence.
- 14: Subordinating conjunctions include after, although, as, because, before, if, since, unless, until, when, and while.
- 15: Relative pronouns include that, which, who, whom, and whose.
- 16: The band I'm in has been rehearsing daily since we have a concert in two weeks.
- 17: This is not a run-on sentence.
- 18: It is not formed from two sentences that have been run together without appropriate punctuation.
- 19: Mexico is the world's largest avocado producer, one variety is so profitable that Mexican farmers refer to the fruit as oro verde, or green gold.
- 20: The answer is B.
id: 4034
question: Which is a sentence fragment?
choice: (A) This warm blue blanket. (B) The greedy king kept all the jewels for himself and his sons.
gold answer: A
wrong prediction:
Rationale:
- 0: A sentence is a group of words that forms a complete thought.
- 1: It has both a subject and a verb.
- 2: My friends walk along the path.
- 3: A sentence fragment is a group of words that does not express a complete thought.
- 4: It is usually missing a subject or a verb.
- 5: Knows the answer.
- 6: This is a sentence fragment.
- 7: It is missing a subject.
- 8: Who knows the answer?
- 9: She knows the answer.
- 10: The bright red car.
- 11: This is a sentence fragment.
- 12: It is missing a verb.
- 13: What did the bright red car do?
- 14: The bright red car stopped.
- 15: A run-on sentence is made up of two sentences that are joined without end punctuation or with just a comma.
- 16: I knocked on the door it opened.
- 17: It started raining, we ran inside.
- 18: To fix a run-on sentence, separate it into two sentences.
- 19: Add end punctuation after the first sentence, and capitalize the second sentence.
- 20: I knocked on the door.
- 21: It opened.
- 22: It started raining.
- 23: We ran inside.
- 24: You can also fix a run-on sentence by rewriting it as a compound sentence.
- 25: A compound sentence is two sentences joined by a comma and a conjunction such as and, but, or, or so.
- 26: I knocked on the door, and it opened.
- 27: It started raining, so we ran inside.
- 28: The greedy king kept all the jewels for himself and his sons is a sentence fragment.
- 29: It is missing a subject.
- 30: The answer is B.