Scientific Method

What is a hypothesis?

• An educated prediction or answer to a testable question

• A random guess

• An observation based on feelings or emotions

• 

Tags

NGSS.HS-PS1-2

What is the best way to collect and record data?

• In a data table

• On post-it notes

• On scrap paper

• interpretive dance

Tags

NGSS.3-ESS2-1

Which of the following is NOT a testable question?

• How do rockets work?

• Does fertilizer help plants grow bigger?

• Does heart rate increase with exercise?

• Does the freezing point of water change at different elevations?

Which of the following is NOT a characteristics of a hypothesis?

• Must be made with background knowledge

• Must be testable

• Must organizes the IV and DV

• Must always be correct

The easy way to pick out an experiments responding (DV) variable is to look for:

• What was purposefully changed
• Number of trials
• What's being measured
• The test group

Tags

NGSS.MS-PS1-2

The control group , or the normal group, is needed for:

• Keeping aspects of experiment constant

• Comparison

• Hypothesis formation

• Application of the manipulated variable

How many variables should be tested at a time?

• Three
• Zero
• Two
• One

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

• dependent variable
• independent variable
• data
• control group

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

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment