Unit 1

What is the first step in the scientific method?

• Make an observation --> Question
• Design and conduct an experiment
• Make an hypothesis
• Share your results

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

Information you obtain through your senses, such as touch, sound and sight.

• observation
• hypothesis
• question
• conclusion

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

In an experiment to find out how the temperature affects the bounce height of a ball, the dependent variable is ...

• temperature
• bounce height
• the thermometer
• the ruler

The one variable in an experiment that is purposely changed and tested by the scientist is the________________.

• dependent variable

• independent variable

• data

• control group

How many independent variables should you have in an experiment?

• two

• as many as possible

• four

• one

This part of the experiment serves as a basis of comparison; the group that does not receive the independent variable.

• constant

• control group

• experimental group

• hypothesis

  There are three parts to the cell theory. Which is NOT one of those parts?

• All organisms are composed of one or more cells.

• The cell is the basic unit of structure and organization in organisms.

• Cells spontaneously arise from carbon and nutrients carried in the bloodstream.

• All cells come from pre-existing cells.

Homeostasis

• allows for a wildly fluctuating internal environment
• is impossible in vertebrates
• is the maintenance of a relatively stable internal environment

• is the maintenance of a relatively stable external environment