Scientific Method

What is the first step in the scientific method?

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

What is the last step of scientific method?

• hypothesis

• observe

• communicate

• question

How many variables should be tested at a time?

• Three
• Zero
• Two
• One

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

A dependent variable is __________.

• What is measured in an experiment

• What you change in an experiment

• A prediction about an experiment

• What stays the same in an experiment

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?

• increase the amount of iron in your blood
• spinach you eat

Jennifer wants to know if students do better on their homework if they listen to classical music or hip hop music. What is the independent variable in this experiment?

• Students' grades on homework

• The age of the students

• The volume of the music

• The type of music