FSA Science Review

Unit 1 FSA review

Multiple Choice

Scientists learn and study the world around them by using a procedure called...

• Observations

• Characteristics of Life

• The Scientific Method

• Nature of science

Open Ended

What is an observation in your own opinion?

Multiple Choice

Which of the following correctly list the scientific method in the correct order?

• Question, research, hypothesis, experiment, observe data

• Research, question, hypothesis, experiment, observe data

• Hypothesis, research, question, experiment, observe data

• Experiment, observe data, question, research, hypothesis

Multiple Choice

What is the term scientist use to predict the answer to their science inquiry?

• Observation

• Results/data

• Variable

• Hypothesis

Multiple Choice

Which of the following would be the best hypothesis for an experiment about the foods that gerbils like the best?

• Gerbils are nocturnal and mostly eat at night

• Gerbils will choose vegetables most often

• Gerbils will get the most nutrients from pellet food

• Gerbils should not eat chocolate

Poll

Which elective will you choose as a freshman in high school?

• P.E.

• Art

• Music

• Technology

• Home Ec.

Multiple Choice

Mr. V wants to find out how to catch more fish. I will use worms and minnows as bait. After fishing for 3 hours on each bait, I caught 4 fish with worms and 13 fish with minnows. Minnows are a better way to fish than worms. What is the DV?

• The number of fish

• The type of fishing line

• The type of bait used

• The time of day fishing.

Multiple Select

In an experiment to determine what type of acid is the MOST corrosive (destructive) which of these would NEED to be a controlled variable? Choose all that apply

• The size of the hole created by the acid

• The material the acid is poured onto

• The amount of acid poured on the materials

• The cost of the acids should all be similar

Open Ended

It is January, and Haley and Sarah are tired of cold feet. They decide to design and experiment looking at the effectiveness of wool, cotton and nylon as insulators. They fill identical water bottles with 100⁰F water and put them in each different type of sock, and measure the temperature every 20 mins. What is the independent variable being measured?

Open Ended

What is the difference between repetition and replication for science experiments?

Multiple Choice

While speaking to a colleague, a scientist makes the following statement: "I propose that Bald Eagle eggs in northern Maine will have thinner shells than those from birds in southern Alaska due to increased levels of pesticides in the water." This statement is a...

• Theory

• Law

• Conclusion

• Hypothesis

Multiple Choice

What is the best explanation for why scientific theories are modified?

• Theories more than five years old are out of date.

• New evidence that supports a revision prompts scientists to modify the earlier theories

• Scientists want to prove that the work of other scientists is wrong.

• So much information is available today that it is harder to focus research and disprove theories.

The Following Questions are ALL similar to Previous Science FSA

Multiple Choice

The graph compares the densities of 7 different metals. Based on the information, which statement best compares the densities of 2 metals?

• Aluminum is denser than titanium.

• Zirconium is denser than titanium.

• Iron is denser than lead.

• Zinc is denser than iron.

Multiple Choice

Scientists conducted an experiment to determine the relationship between algae growth and available light at increasing ocean depths. The table shows the results. Which of the following statements best describes the relationship between light and the density of algae population.

• As the light level decreases, the density of the algae population decreases.

• As the light level decreases, the density of the algae population increases.

• As the density of the algae population increases, it reduces the light level.

• Light level has no effect on the density of algae population.

Multiple Choice

There are many important laws and theories in science. Which of the following is a law in science?

• A living thing is made of at least one cell.

• An atom is made of electrons orbiting a nucleus.

• Gravity will pull two objects toward each other.

• Natural selection will change species to fit their environment.

Multiple Choice

Astronomers send probes to other planets to take pictures of their surfaces. An Astronomer thinks that briny water flows on Mars because he noticed certain features in one picture of Mars. Which method did the astronomer use to form this hypothesis?

• reading scientific literature

• making careful observations

• analyzing a natural experiment

• conducting a controlled experiment

Multiple Choice

Scientists have studied glaciers in Greenland as evidence of global warming. One team of scientists predicts that glaciers are melting at an accelerated rate. The scientists collect the same types of data on the same glaciers on the same dates each year for ten years. The scientists conclude that the glaciers have decreased in mass and increased their velocity toward the sea each successive year. Which of the following statements best evaluates the process that the scientists used?

• The process is a flawed experiment because the variables are not controlled

• The process is a valid experiment because there is an independent variable and a test variable

• The process is a flawed investigation because the investigators did not begin by forming a hypothesis

• The process is a valid investigation because scientists used systematic methods for collecting and analyzing information.

Multiple Choice

Chemist once believed that an atom was made of negative electrons dispersed inside a positive mass like raisins in pudding. An experiment with radiation and gold foil demonstrated that most of an atom was made of empty space. After this experiment, they adopted a new model of the atom that showed the electrons orbiting the nucleus of the atom from a distance. Which of the following statements about the new model is true?

• The new model is perfect and will not change

• The new model is a wrong model and will not last

• The new model fits the data worse than the old model

• The new model fits the data better than the old model.

Multiple Choice

During the nineteenth century, biologists knew that South America and Africa contained similar fossils. These fossils led them to believe that a temporary land bridge between South America and Africa allowed ancient species to move between both continents. In the twentieth century, evidence showed that South America and Africa were once part of the same larger continent and that there were no land bridges between them. How should biologists respond to the new geological finding?

• Biologist should reject the geological finding, because it is new

• Biologist should ask physicists what to do, because physics is a more exact science

• Biologist should reject the belief in ancient species, because there were no land bridges

• Biologist should update the history of life, because it should include the new geological findings

Multiple Choice

Before scientists submit their work to the scientific community, they want to make sure their data is correct. How best can they ensure that their results are valid?

• Scientist hire editors to review their lab reports to make sure their explanations are clear and concise

• Scientist partner with mathematicians to check over all their data and charts and graphs to ensure they have enough data

• Scientists repeat their experiments just a few times to show that they can get the same results more than once and to catch any mistakes

• The scientists repeat their experiments over and over many times to ensure that they have taken everything into consideration and obtain quality results

Multiple Choice

Glands regulate distant parts of the human body with hormones. The pancreas regulates the body with a hormone called insulin. A biologist wanted to discover the effects of insulin from the pancreas. The biologist altered the pancreases from 30 mice. The biologist kept another 30 mice unaltered. Then the biologist recorded the differences that developed between the mice in both groups. What method did the biologist perform to investigate the role of the pancreas?

• publishing finished results

• reading scientific literature

• conducting a controlled experiment

• analyzing a natural experiment

Multiple Choice

A basic principle for scientific research is that the experiment must be able to be replicated. What happens when an experiment is replicated?

• A scientific publisher accepts the experimental results for printing

• Other scientists perform the same experiment and get comparable results

• No one in the scientific community agrees with the methods or results

• The scientific researcher performs the experiment many times and gets the same results