Hypothesis, laws, and theories assignment and quiz

Which statement best describes the difference between a scientific theory and a scientific law? A scientific theory is supported by more data than a scientific law. A scientific theory can explain observations. A scientific law includes equations.

A scientific theory can explain observations.

What is the primary difference between a hypothesis and a theory? A theory is supported by more data and observations than a hypothesis is. A hypothesis is falsifiable, but a theory has been proven to be correct. A theory is a prediction, but a hypothesis is an explanation. A hypothesis is more reliable than a theory.

A theory is supported by more data and observations than a hypothesis is.

Which statement correctly compares a law and a theory? A law provides an explanation, while a theory simply describes observations. A law is supported by data, while a theory is merely a guess. Neither a law nor a theory can be proved false. Both a law and a theory can be tested.

Both a law and a theory can be tested.

Summarize the differences between a legal law and a scientific law.

Did your answer include all of the following? Legal laws are passed by lawmakers in a democratic process that accounts for people's opinions and beliefs. Scientific laws are discovered and tested by experiments. Legal laws can be changed if people change their minds. Legal laws may have exceptions.

A student is creating a table that compares theories, hypotheses, and laws. Theory Hypothesis Law Is supported by many observations Can be tested Cannot be changed Explains observations In which row should the student enter "No" in the column for Law? Is supported by many observations Can be tested Cannot be changed Explains observations

Explains observations

A student is trying to create a table that compares hypotheses, theories, and laws. Hypothesis Theory Law Do scientific researchers formulate it? Yes Yes Yes Does it explain why things happen? Yes Yes No ____ Yes Yes Yes Is it used to make predictions? No Yes Yes Which of the following questions would most likely fill the blank in the table? Is it an intelligent guess? Is it newly formulated? Is it based on observations? Has it been proved?

Is it based on observations?

When a theory is disproved by further evidence, which of the following occurs? It should be considered a failure. It adds to scientific knowledge. It becomes a law. New data must be found to support it.

It adds to scientific knowledge.

Soda and other carbonated beverages seem more "fizzy" when they are served on an airplane at standard cruising altitude. Write a hypothesis that could explain this observation

Sample: If the pressure in the air around a carbonated beverage decreases, then the beverage will seem more fizzy because more gas can come out of the liquid Your hypothesis should meet all the following criteria. Check the box next to each criterion that your hypothesis met. It's testable. It can be supported or refuted by data. It includes a prediction.

Which of the following is the best example of a scientific law? The gravitational force between two objects is related mathematically to their mass and the distance between them. If an object is pushed off the edge of a table, it will fall to the ground. Gravitational force is the result of the curvature of the fabric of space-time.

The gravitational force between two objects is related mathematically to their mass and the distance between them.

The data from one particular experiment do not agree with a current theory. What is the next step? Discard those data. Change the theory immediately. Try to repeat the data from the experiment. Change the data to agree with the theory.

Try to repeat the data from the experiment.

Jenna is a scientist in a chemistry lab. Her experiment did not support her current theory. What should she do next? Revise her theory because it must be incorrect. Disregard the data because they must be inaccurate. Verify the data by running the experiment several more times. Publish a paper that explains the data.

Verify the data by running the experiment several more times.

When may a hypothesis be revised? never based on experimental data after it has been proven to be correct after at least one year from when it was first tested

based on experimental data

Jia observes that adding a solution of sodium hydroxide to a clear liquid turns the liquid pink. She makes a hypothesis about why the liquid changed color. Which characteristic is least important for her hypothesis to have? ability to be tested based on the opinion of her classmates ability to be proven incorrect based on her current knowledge

based on the opinion of her classmates

The following diagram shows a common way that scientific knowledge is discovered. mc024-1.jpg Which term should replace the question mark? hypotheses theories laws publications

hypotheses

Which of the following explains observations? hypotheses laws theories

hypotheses and theories

Which of the following are falsifiable? hypotheses laws theories

hypotheses, laws, theories

Which of the following are testable? hypotheses laws theories

hypotheses, laws, theories

Which of the following are used to make predictions? hypotheses laws theories

laws and theories

Which of the following are supported by many observations? hypotheses laws theories

laws, theories