A mass hanging from a fixed point that is free to swing back and forth.

An unproven idea that is accepted for the time being because it may explain certain facts or be used for reasoning.

The standard length of the pendulum.

A graph representing data using pictures.

The variable(s) that did not affect the outcome.

Any motion or activity that repeats itself.

The first step in the scientific method.

The standard amount of time given to swing the pendulums.

A graph that shows the outcome of a series of experiments when a variable is changed.

The variable(s) that did affect the outcome.

Anything that you can change in an experiment that might affect the outcome.

The fourth step in the scientific method.

The degree we released during the standardized experiment.

The side on a two-coordinate graph that shows what we know before an experiment.

When the string length is longer this is the outcome.

The basic procedure used in a controlled experiment, before changing any of the variables.

When your hypthesis is false you must think again and change your...

The amount of pennies used in the standard experiment.

The side on a two-corrdinate graph that shows what we know after an experiment.

When the string length is shorter this is the outcome.

An estimate based on information or experience.

To become an expert on a topic.

The average cycles completed in 15 seconds in the standardized experiment.

Scientists use this kind of graph to record and display information efficiently.

When we changed one variable in order to assess its outcome on an experiment.