Introduction+to+Science

=Conducting Investigations=

Variables
We will start by studying Variables in Science. Below is the study guide you were given in class to help you study for your test. You may download the study guide below or just study from this site.

Variable Study Guide

A variable is ANYTHING that can change during an investigation.

–Something you change

–Something that changes because of other changes you made.

SAMPLE QUESTION The variable has been underlined Does the __amount of sunlight__ affect __how tall daisies grow__?
 * In this question you are asking if the variable of sunlight has an effect on the variable of the height of the plant.
 * Both the amount of sunlight and the height of the plant can change in the investigation.
 * Both are considered variables since a variable is anything in an investigation that can change.
 * Sometimes when you write a question to investigate you will write it so that you are asking how one variable affects another variable.

Hypothesis:
A hypothesis is an idea about what you think the answer is to a question you have asked.