The Scientific Method

We observe the world around us using our five ______.

A hypothesis is ...

• an educated guess

• a prediction

• a probable answer to a question

• all of the answers

The independent variable is the variable you...

• test/change

• measure

• keep the same

The dependent variable is the variable you...

• test/change

• measure

• keep the same

The control variables are the vraiables you...

• test/change

• measure

• keep the same

To make an experiment a fair test, you must change...

• only one variable

• at least two variables

• all the variables

Ahmed wants to investigate if the amount of water will affect the growth of the tomato plant. What is the independent variable?

• The type of tomato plant

• Amount of water

• Height of the plant

• Type of soil

Ahmed wants to investigate if the amount of water will affect the growth of the tomato plant. What is the dependent variable?

• The type of tomato plant

• The amount of water

• Height of the tomato plant

• Amount of sunlight

Ahmed wants to investigate if the amount of water will affect the growth of the tomato plant. What are the control variables?

• The type of tomato plant and type of soil

• The amount of soil and amount of sunlight

• Height of the tomato plant

• Amount of water

How can data be presented?

• Graphs

• Pie charts

• Tables

• All of the answers