Science Review 1

Scientific knowledge is based on evidence. Where do scientists acquire evidence?

• 
  from scientific hypotheses

• from scientific theories

• 
  from observations or experiments

• from reading popular magazines

In which of the following ways can scientific knowledge change and grow?

• 
  a single experiment disproves a prevailing theory

• a large number of experiments challenge a prevailing theory

• 
  a popular scientist states that a prevailing theory is not correct

• experiments reaffirm the validity of a prevailing theory

A computer is an example of technology that is used in science. For what purpose are computers used?

• 
  storing data

• 
  computation

• communicating data

• 
  all of these

Scientific knowledge is based on:

• Scientific knowledge is based on:

• 
  observations and inferences.

• bias and opinions.

• hypotheses and doubt.

Scientific knowledge is most useful when trying to understand

• 
  the natural world.

• 
  religion.

• 
  philosophy.

• 
  art.

Scientific knowledge can withstand the test of time because

• scientific theories have been proven beyond doubt.

• 
  it is open to change as new evidence or data is discovered.

• 
  advancements in technology have no impact on science.

• 
  advancements in technology have no impact on science.

Which of the following is a good scientific question?

• 
  Why do crickets chirp?

• 
  How do star fish fall in love?

• 
  Does eating less fat increase a mouse's life span?

• 
  Are dragons lizards or birds?

Which of the following make up the nucleus of an atom?

• neutrons only

• 
  protons and electrons

• protons and neutrons

• 
  electrons only

What is the smallest part of an element that still retains properties of that element?

• 
  compound

• 
  atom

• 
  molecule

• 
  mixture

Neon is a gas made up of only one type of atom. Which term best describes neon?

• molecule

• compound

• element

• mixture