Nature of Science

In an experiment, the one variable that is changed is called the

f I study for my scientific method quiz, then I will have a better test score. What is the dependent variable?

A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?

In an experiment, the factor that we measure is called the

A broad and comprehensive statement of what is thought to be true; it is supported by much evidence.

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

A list of the steps anyone could follow to conduct an experiment.

In a controlled experiment, how many independent variables can be worked with at a time?

group that does not receive the variable you are changing or gets the "normal condition"

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?

A scientist studying cold medicines hypothesizes that one particular medicine is more effective than the others in the study. He attempts the experiment several times. Each attempt produces a different result. What should he do next?

Ms. Jenks sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

What is a hypothesis?

What step does every scientific experiment begin with?

information gathered using your 5 senses

Name the steps for an experiment in order

a visual representation of data used to show patterns and relationships

repeated measurements or trials within an experiment

Two students prepare lab reports, one for a physics class and the other for a biology class. Which of the following items will both reports contain?

The summary at the end of an experiment that explains the results.

group that receives a different amount or type of the variable you are changing

A possible explanation to a problem that has not yet been tested.

Marcus is completing a science experiment for class. He wants to see what effect water temperature has on plants. If his experiment contains one independent variable, which of the following would NOT be a constant in his experiment?

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

used to organize data when it is collected

Another scientist does my experiment.

Elaine is studying the effect of sleep deprivation on motorists. The chart below shows the reaction times of the drivers she studied. What is the independent variable in Elaine’s study?