Fall Final Review

What is a system of knowledge and the methods used to find that knowledge?

• science

• technology

• measurement

• curiosity

What are the building blocks of all matter?

• forces

• atoms

• magnetic fields

• kinetic and potenial energy

in which step of the scientific method is information obtained through the senses?

• drawing conclusions

• making observations

• analyzing data

• revising hypothesis

What happens when the data in an investigation do not support the original hypothesis?

• The scientist gives up and starts an investigation on a new topic.

• The data must be incorrect and are thrown out.

• The hypothesis is revised.

• The data are altered so that they support the original hypothesis.

What is a statement that summarizes a pattern found in nature?

• a scientific law

• a fact

• a scientific theory

• a hypothesis

Which of the following statements is true about scientific theories?

• Scientific theories become scientific laws.

• Scientific theories are never proven.

• Scientific theories become hypotheses.

• Scientific theories summarize patterns found in nature.

Why are scientific models important?

• They prove scientific theories.

• They help visualize things that are very complex, very large, or very small.

• They make it harder to understand things.

• They never change.

If the relationship between the manipulated variable and the responding variable is a direct proportion, what will a line graph of this relationship look like?

• a straight line

• a curved line

• a jagged line

• none of the above

If a material contains three elements joined in a fixed proportion, it is a(an)

• mixture

• solution

• atom

• compound

Which of the following is a characteristic of a mixture?

• has varying properties

• has a fixed composition

• contains only pure substances

• both a and b