Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

The Scientific Method

No description

Natalie Howell

on 8 September 2015

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of The Scientific Method

Organized series of steps scientists use when conducting investigations.

Identify the Problem/Ask a Question
Steps of the Scientific Method
Formulate Hypothesis
Create/Perform Experiment
Gather and Analyze Data
Draw Conclusions
Make observations and ask questions.

Identify Problem/
Ask Questions
Ex: One plant in my room is growing better than another. I wonder why?
Predict a possible answer to the problem or question.
Example: If sunlight exposure is greater, then plant growth will increase.

An organized series of steps used to test hypothesis

The outcome must be measurable (quantifiable).
Include tables, graphs, and photographs.

Analyze Data

Observe results and record data
Include a statement that accepts or rejects the hypothesis.
Draw Conclusions
Make recommendations for further study and possible improvements to the procedure.
Think you can name all six steps?

John watches his grandmother bake bread. He asks his grandmother what makes the bread rise.

Ask a Question
Grandma explains that yeast releases a gas as it feeds on sugar.

John wonders if the amount of sugar used in the recipe will affect the size of the bread loaf?

He comes up with a hypothesis.
Formulate a Hypothesis
An educated guess (testable prediction)
Most often written in an "If...., then...." format
Do you know the difference between the independent and dependent variables?

Independent Variable

what happens as a result of the independent variable. (data)
Dependent Variable
John comes up with a procedure and list of needed materials.
Can you think of some controls for this experiment?

They might include:
Other ingredients to the bread recipe, oven used, rise time, brand of ingredients, cooking time, type of pan used, air temperature and humidity where the bread was rising, oven temperature, age of the yeast…

Control Variables
Size of Bread Loaf (cm )

Control group

Size of Baked Bread (LxWxH) cm
John finds that 70g. of sugar produces the largest loaf.
His hypothesis is accepted.


An educated guess based on research and observation
A statement that
rejects or accepts
the hypothesis based on the data from the experiment.
Inference - a conclusion formed from available evidence
Your hypothesis is the inference you are testing.
Scientific theory
An attempt to
a pattern observed repeatedly in the natural world.
Scientific law
a pattern in the natural world
Tries to say "why?"
Only tells "what"
If salt is added to water, then it will boil faster.
What is the independent variable? The dependent variable?
Communicate Results
Graphed on x-axis (horizontal)
Variable that is CHANGED by experimenter.
The words following "if" in hypothesis are the independent variable
Graphed on y-axis (vertical)
Further Research?
Make recommendations for further study.
How can I improve my procedure?
What is the independent variable?
Can only be
Variables in experiment that
do not
Standard for comparison
What is the dependent variable?
“If more sugar is added, then the bread will rise higher.”
Ex. If I water the plant more often, then it will grow faster.
Uses observation and investigation to gain knowledge about the natural world.
Quantitative data
numerical (ex. 1cm, 2cm, 3cm, etc.)
objective - measurable
Qualitative data
descriptive (ex. blue, shiny, etc.)
subjective - affected by opinion or experiences
it is what is measured
Full transcript