# Scientific Method A series of steps designed to solve a problem or learn more about the world around you.

## Presentation on theme: "Scientific Method A series of steps designed to solve a problem or learn more about the world around you."— Presentation transcript:

Scientific Method A series of steps designed to solve a problem or learn more about the world around you.

Experiment A procedure carried out to test a hypothesis

Purpose The goal or question of the experiment What temperature of water will make a denture tablet dissolve faster?

Independent Variable changed on purpose The “cause”
There can only be one IV The temperature of water that you put the denture tablet in

Dependent Variable What happens in the experiment
A measurement (specific data) The “effect” This is a result of changing the independent variable. How many minutes it takes for the denture tablet to dissolve

Control Part of the experiment that is used as a comparison to see
if there was an effect Examples: putting a denture tablet in room temperature water (normal conditions)

Hypothesis An educated guess about the outcome of an experiment.
If (independent variable is changed) then (this is how the dependent variable will change). If the temperature of water increases then the denture tablet will dissolve faster.

Constants Things that are kept the same.
Needed so that we get accurate results and only have one IV. For the denture tablet experiment: Same amount of water Same brand of denture tablet Same size beaker or container

Procedure A series of steps in the experiment.
Should be able to repeated by more than one person

Repeated Trials Doing an experiment more than once
Necessary to check for accurate results Do we get the same results each time?

Conclusion A final statement that compares the data to the hypothesis
Describes the results of the experiment

Example #1 Will a plant grow taller if it is given more fertilizer?
What is the independent variable?

Example #1 IV = Amount of fertilizer
Will a plant grow taller if it is given more fertilizer? What is the independent variable? IV = Amount of fertilizer

Example #1 Will a plant grow taller if it is given more fertilizer?
What is the dependent variable?

Example #1 DV = How tall the plant grows
Will a plant grow taller if it is given more fertilizer? What is the dependent variable? DV = How tall the plant grows

Example #1 Will a plant grow taller if it is given more fertilizer?
What are 3 constants for this experiment?

Example #1 Will a plant grow taller if it is given more fertilizer?
What are 3 constants for this experiment? Kind of plant Amount of soil Amount of water