Biology Midterm Review

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?

• the paper used
• the type of paper airplane
• the distance of each plane's flight
• how hard the plane is thrown

Which variable depends on what is done at the beginning of an experiment?

• Dependent
• Independent
• Control
• Following

Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball
• who the person is
• how well they do on the math test
• Type of soccer ball.

What two words should be in your hypothesis?

• I think

• If ...then...

• It will

• No idea

What variable comes after the word IF

• independent variable

• dependent variable

What variable comes after the word then?

• independent variable

• dependent variable

Which hypothesis is correctly written?

• I think I will do well on my test today, because I ate a good breakfast.

• If I eat a good breakfast, then I will do well on my test today.

• If I eat a good breakfast, then I will earn a passing grade on my test today.

• If I do well on my test today, I get to out to eat for breakfast.

A hypothesis is never wrong.

• True

• False

An element is determined by the number of ________ in its nucleus (also known as its atomic number).

• neutrons

• electrons

• protons