Practice Questions 6th Grade, Chapter 1

True/False

Indicate whether the statement is true or false.

____       1.            All important scientific discoveries are made by professional scientists.

____       2.            Scientific models have two basic types.

____       3.            Variables are those factors that can be changed in an experiment.

____       4.            When observing and recording the results of an experiment, observations may include both measurements and descriptions.

____       5.            Using scientific methods means doing a professional experiment.

____       6.            Laboratory safety is not an important concern for scientists.

____       7.            If the results of a study do not support a hypothesis, it means that the experiment failed.

____       8.            Scientific models are often used to help scientists understand a problem.

____       9.            Computer models can be touched.

____     10.            Einstein's idea model for his theory of relativity was also built as a physical model.

____     11.            Once a scientific model has been created, it cannot be changed.

____     12.            Although people of different races, sexes, and cultures have made scientific discoveries, they have all been adults, older than you.

____     13.            The only way to test a hypothesis is by conducting a controlled experiment.

____     14.            An important part of planning an experiment is determining the materials needed.

____     15.            Data tables help you to organize your observations and test results.

____     16.            Data are always numerical measurements.

____     17.            A hypothesis is a decision based on the results of the experiment.

____     18.            If it takes more than a few experiments to find the answer to a particular problem, it means that the scientist has failed and is not a very good researcher.

____     19.            It is often necessary to look at the same problem in different ways in order to find an answer.

____     20.            Models may change as new discoveries are made.

Multiple Choice

Identify the choice that best completes the statement or answers the question.

____     21.            The process of learning more about the natural world is ____.

____     22.            Experiments and investigations must be ____.

____     23.            A prediction about a problem that can be tested is a(n) ____.

____     24.            It is important to ____ when drawing conclusions from scientific information.

____     25.            The factor being measured in an experiment is the ____.

____     26.            A variable in an experiment that stays the same is a(n) ____.

____     27.            Science cannot answer questions about ____.

____     28.            Models can do all of the following EXCEPT ____.

____     29.            Limitations of models include ____.

____     30.            Models can be used to describe which of the following environments?

____     31.            Scientific ____ must be supported by observations and results from many investigations and are not absolute.

____     32.            The three branches of science are ____, Earth, and physical.

____     33.            Another term for technology is ____.

____     34.            When designing an experiment, the first step is to ____.

____     35.            When conducting an experiment, the last step is to ____.

____     36.            A camera is an example of ____.

____     37.            To evaluate the observations you make, you must use ____.

____     38.            Scientists must be impartial and not base their conclusions on ____.

____     39.            To ____ means to draw a conclusion based on something you observe.

____     40.            ____ materials are designed to get you to buy a product or service.

Short Answer

             41.            List at least two things that scientists and explorers have in common.

             42.            Describe a scientific theory.

             43.            How do scientists come up with hypotheses?

             44.            Why are models important?

             45.            What is a system?

             46.            Why might scientists conduct multiple trial experiments rather than rely on a single trial?

             47.            Give at least two reasons why an experiment might not support a hypothesis even when the hypothesis is correct.

             48.            What is the difference between science and technology?

             49.            What are examples of careers in each branch of science?

             50.            Why is technology important?

             51.            List at least three important science skills.

             52.            Describe how scientists might use at least two science skills to explore data from studying the planet Pluto.

             53.            List at least three important safety rules to follow when conducting science experiments or activities.

             54.            What is a system?

             55.            Explain the role of opinion in observing scientific data.

             56.            What is the difference between observation and inference?

             57.            What is one way scientific theories and scientific laws are similar and one way they are different?

             58.            What is an independent laboratory and why would its results be considered more reliable than the results from a laboratory paid by a company selling a particular product?