Questions and answers by

Here to Help

Questions (236)

Which is an advantage of sexual reproduction over asexual reproduction?A. Sexual reproduction is quicker and less complex. B.
1. 1 answer
2. 19 views
The birds shown below live on a single island.These four bird species are closely related, and all of them share a common
1. 1 answer
2. 21 views
Which of the following is NOT one of the main components of the cell theory?A. cells must contain DNA B. all living things are
1. 1 answer
2. 20 views
On a summer day, Thomas is standing in his driveway waiting for his mother . Energy from the Sun is making Thomas feel hot. This
1. 1 answer
2. 19 views
In a lab group you combined vinegar and baking soda and observed the results shown in the picture. Choose ALL of the evidence
1. 1 answer
2. 27 views
Which physical properties can be used to differentiate between metals and non-metals?A. Malleability B. Conductivity C.
1. 1 answer
2. 19 views
Which of the following statements is true about the relationship between the speed of sound and the density of a medium?A. Sound
1. 1 answer
2. 20 views
which of the measurements below have three significant digits?0.0050830 A. 134 meters B.56.09 inches C. 0.52 centimeters D. 8009
1. 1 answer
2. 31 views
Find the surface area of a rectangular pyramid with these measurements: l = 15 m, w = 12 m, and h = 10 m. Express your answer as
1. 1 answer
2. 19 views
Compare the student text with the source.Source: Jared Diamond, Guns, Germs, and Steel, pages 39–40. Published by W. W. Norton
1. 1 answer
2. 39 views
Look at the word ostracize in the passage below.In the late 1990s, a deposit of more than 150 broken pottery pieces was
1. 1 answer
2. 23 views
Read the following story.Cody liked the freedom that came with his first summer job. He worked at Mitchell's Farm, where people
1. 1 answer
2. 28 views
A box needs to be decorated to use as a prop in a play. The bottom and the back of the box do not need to be decorated. What is
1. 3 answers
2. 38 views
What is this figure? Describe its attributes.A. It is a triangular pyramid. Its attributes include 4 faces: 3 lateral faces that
1. 1 answer
2. 74 views
Aimee packs ice cream into an ice cream cone. She then puts a perfect hemisphere of ice cream on top of the cone that has a
1. 3 answers
2. 34 views
What is onomatopoeia?A. a comparison between two unlike objects using like or as B. the repetition of the same letter or sound
1. 1 answer
2. 25 views
For each of the statements below, indicate whether the statement describes a scientific theory, a scientific law, or both.Can be
1. 1 answer
2. 69 views
Which of the following best explains why the Southern Hemisphere experiences seasons opposite to those in the Northern
1. 1 answer
2. 56 views
Which of the following is a key characteristic of all planets?A. they are made up of mostly ice and dust B. they orbit the sun
1. 1 answer
2. 26 views
How does physical evidence, such as rock layers, contribute to our understanding of Earth's history?A. It helps predict future
1. 1 answer
2. 47 views
Which of the following best describes the gravitational force on the Moon compared to Earth?A. The Moon has stronger gravity
1. 1 answer
2. 43 views
What is the significance of atoms in the formation of compounds?A. Atoms are the smallest particles of matter. B. Atoms
1. 1 answer
2. 53 views
The chemical reaction that produces soap is called saponification. During one type of saponification, oil and sodium hydroxide
1. 1 answer
2. 45 views
Which of the following is a physical property of matter?A. ability to rust B. ability to burn C. ability to conduct electricity
1. 1 answer
2. 49 views
Which of the following statements best describes the periodic table?A. A chart that organizes elements based on their atomic
1. 1 answer
2. 53 views
Determine whether each statement below is true or false to complete the table.The nucleus of an atom is found in the atom's
1. 1 answer
2. 61 views
Particles in each state of matter behave differently because they have different amounts of thermal energy. For each statement
1. 1 answer
2. 28 views
Which of the following is an example of a mixture?A. water B. salt C. oxygen gas D. air
1. 1 answer
2. 38 views
A block of wood floats in water. Which of the following statements is correct?A. The wood has a higher density than water B. The
1. 1 answer
2. 27 views
How does mass differ from weight?A. Mass is a measure of the force of gravity on an object, while weight is the amount of matter
1. 1 answer
2. 68 views
How are scientific theories different from scientific laws?A. Theories are based on facts, while laws are based on opinions. B.
1. 1 answer
2. 37 views
Which of the following is a limitation of scientific models?A. They are too simple to represent complex phenomena B. They are
1. 1 answer
2. 35 views
Which of the following statements best describes the purpose of forming a hypothesis in the scientific method?A. To prove a
1. 1 answer
2. 38 views
What is the purpose of making observations in the scientific method?A. To gather data and information B. To prove a hypothesis
1. 1 answer
2. 78 views
Which fossilized organisms are most likely found in Earth's lowest rock layer?A. snails B. reptiles C. bacteria D. dinosaurs
1. 1 answer
2. 51 views
How do outer planets differ from inner planets?A. How do outer planets differ from inner planets? B. They consist of a mixture
1. 3 answers
2. 73 views
Which list provides an accurate order for changing models of our solar system, starting with the oldest and ending with the most
1. 1 answer
2. 40 views
Why is it hard to find the age of EarthA. The Earth is constantly moving B. Earth's surface is constantly changing. C. There is
1. 1 answer
2. 21 views
What is the purpose of transition words and phrases?A. to tie together part of a narrative logically B. to reveal key vocabulary
1. 1 answer
2. 22 views
How were the planets in the solar system formed?A. The dust particles were attracted by gravity from distant galaxies. B. The
1. 1 answer
2. 22 views
What is reflection?A. the most important details in a story B. the use of sensory words C. a self-examination by the narrator D.
1. 1 answer
2. 21 views
What is pacing?A. the speed at which a story moves B. the perspective of the narrator C. the details that bring a story to life
1. 1 answer
2. 17 views
Luisa ran through the back door of the coffee shop where she worked every Saturday. She shoved her purse in her locker and tied
1. 1 answer
2. 18 views
What is an outline?A. a list of the writer’s favorite events from the story B. a list of events in the story written in the
1. 1 answer
2. 22 views
What is a narrative?A. a nonfiction text consisting of a series of events in a person's life B. a fiction or nonfiction story
1. 1 answer
2. 23 views
In the image with the trash can, the principles of designA. emphasize the message through color and shape B. distract the viewer
1. 1 answer
2. 45 views
How did the U.S. government try to enforce the Treaty of Payne's Landing?A. It attacked Seminole villages. B. It negotiated
1. 1 answer
2. 19 views
States spent millions of dollars in the race to build canals. But canals soon received competition from another new form of
1. 1 answer
2. 89 views
Land transportation improved in the early 1800s, but it was still cheaper and faster for goods and people to be transported over
1. 1 answer
2. 57 views
The Oregon TrailIt began as an unconnected series of trails used by Native Americans. Fur Traders expanded the route to
1. 1 answer
2. 23 views
Which of the following was a result of the Mexican-American War?A. It enabled the United States to annex Texas. B. It gained the
1. 1 answer
2. 45 views
How is conservation shown in the piece of art?A. use of traditional materials designed for sculpture B. repurposing items as art
1. 1 answer
2. 44 views
How can art help the science of conservation?A. by encouraging people to buy new products B. by educating people on the
1. 1 answer
2. 34 views
Understanding Arguments For and Against the WarStar has continued gathering evidence from primary and secondary sources to
1. 1 answer
2. 52 views
*Please make sure that you complete the other part of the portfolio first!In the first part of this portfolio, you learned about
1. 1 answer
2. 53 views
Read the passage from American Experience, by PBS:Polk started out by trying to buy the land. He sent an American diplomat, John
1. 1 answer
2. 50 views
Drafting a ParagraphYou are writing a paragraph to argue that the United States was justified in going to war with Mexico in
1. 1 answer
2. 62 views
Drafting a ParagraphYou are writing a paragraph to argue that the United States was not justified in going to war with Mexico in
1. 1 answer
2. 58 views
Imagine that you are a historian writing a summary of the U.S.-Mexican War. Using what you have learned, complete the text
1. 1 answer
2. 33 views
Opposition to the WarEven though many Americans were eager to fight in Mexico, other Americans were opposed to the war. Some of
1. 1 answer
2. 32 views
President Polk's ClaimsOn May 11, President Polk gave a speech to Congress. Read the following portion of that speech. Then
1. 1 answer
2. 43 views
Disputed TerritoryAfter the U.S. annexed Texas, the United States and Mexico disagreed about the new boundaries. Both countries
1. 1 answer
2. 77 views
Annexation of TexasShortly after James K. Polk was elected, the Democratic Party achieved one of the goals of its platform. The
1. 1 answer
2. 90 views
What was Manifest Destiny?At the time of the U.S.-Mexican War, many Americans believed in an idea called Manifest Destiny.
1. 1 answer
2. 68 views
Melanie walked out onto the stage, and her stomach dropped like a free-falling elevator. She crept slowly over to the podium and
1. 1 answer
2. 39 views
Georgia LawsAfter the Indian Removal Act passed, the government of Georgia began giving away the Cherokee Nation's land to white
1. 1 answer
2. 41 views
1. The Cherokee cannot testify in Georgia's courts.2. The existence of the Cherokee government is illegal. 3. The Georgia Guard
1. 1 answer
2. 34 views
What is an allusion?A. a comparison between two otherwise unlike objects, people, or places B. a brief or indirect reference to
1. 1 answer
2. 41 views
What is tone?A. the time and place in which a story takes place B. a comparison between two otherwise unlike people, objects, or
1. 1 answer
2. 27 views
In 3-5 sentences, explain what some limitations of using this model to explain the phases of the moon would be. Consider factors
1. 1 answer
2. 64 views
Treaty of New EchotaThough they had no legal right to represent the Cherokee Nation, some Cherokees signed the Treaty of New
1. 1 answer
2. 53 views
From Americanindian.si.eduIn the early 1800s the Cherokee began to face enormous pressures to cede [give up] all of their
1. 1 answer
2. 35 views
The text below is adapted from the Alien and Sedition Acts. Match each passage from the Alien and Sedition Acts with its
1. 1 answer
2. 64 views
Match each of the quotes from John Marshall's opinion to its correct paraphrase.One of the options will not be used. 1. "The
1. 1 answer
2. 47 views
In the passage above, Washington warns of the dangers to the country if people allow political parties to take hold in the
1. 1 answer
2. 38 views
Match each part of Washington's speech below with the correct paraphrase of his meaning.1. The great rule of conduct for us in
1. 1 answer
2. 20 views
An example of an expository essay about Threatened Species using information from Worldwide Loss of Bees a Growing Concern, The
1. 1 answer
2. 55 views
What was Tchaikovsky’s inspiration for composing The Nutcracker?A. a folktale B. Greek tragedies C. a politician D. battle
1. 1 answer
2. 43 views
Any example of an informative or explanatory essay on marine habitats?
1. 1 answer
2. 27 views
What is a definition of citizenship?A. having been born in a country B. being a full and equal member of a nation C. having
1. 1 answer
2. 25 views
2.56×10^(-2)-4.82×10^12
1. 1 answer
2. 23 views
How does a balanced chemical equation demonstrate the Law of Conservation of Mass?A. it shows that only physical changes follow
1. 1 answer
2. 51 views
Which of the following would be considered most acidic?A. soap B. ammonia C. lime water D. vinegar
1. 1 answer
2. 25 views
Based on the formula for Sulfuric acid pictured above, there are _____ molecules of sulfuric acid. In each molecule there are
1. 1 answer
2. 68 views
1. You burn a piece of toast when leaving it in the oven. The bread is now black. ______2. You forget to dry a knife after
1. 1 answer
2. 24 views
Chemical and physical changes are two fundamental ways that matter can be altered in our world. , like cutting paper or melting
1. 1 answer
2. 24 views
Use the pH scale provided to answer the questions that follow.0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14
1. 1 answer
2. 60 views
Fill in the blanks using the drop down menu.1. The _____ measures how acidic or basic a substance is. 2. The pH scale ranges
1. 1 answer
2. 69 views
In science, the Law of Conservation of Matter tells us that matter cannot be created or destroyed, only _____ . This means that
1. 1 answer
2. 52 views
The C minor scale is the __________________ of the C major scale.A. relative major B. enharmonic C. chromatic D. parallel minor
1. 1 answer
2. 41 views
"Bell" from Beauty and the BeastDescribe the Mood- How does the music make you feel? Does it change throughout the song? Do
1. 1 answer
2. 36 views
Why is voting an important civic responsibility?A. it is part of the constitution B. it is required by law C. it determines the
1. 1 answer
2. 37 views
Use the chemical reaction to answer the question.4Fe+3O2→2Fe2O3 What happens to atoms of Fe and O2 during the reaction?
1. 1 answer
2. 33 views
Which sentence uses a semicolon correctly?A. We moved practice to the gym; after it started raining. B. I need to bring the
1. 1 answer
2. 26 views
In which set are the numbers arranged in ascending orderA. 0.000325, 0.00225, 0.00125, 0.00325 B. 3.25*10^-3. 2.25*10^-3,
1. 1 answer
2. 14 views
Which observation most likely indicates that only a chemical change has taken place?A. the change cannot be reversed B. a
1. 1 answer
2. 26 views
What was the importance of the inclusion of the Bill of Rights in the Constitution?A. It created a separation of powers of the
1. 1 answer
2. 36 views
Which of the following substances is an element?A. salt B. protein C. hydrogen D. insulin
1. 1 answer
2. 25 views
Which of the following properties is a chemical property?A. magnetism B. melting point C. hardness D. flammability
1. 2 answers
2. 37 views
Which of the following statements is accurate regarding the Three-Fifths Compromise and the issue of slavery?A. The compromise
1. 4 answers
2. 147 views