Scientific Method
What is one way to make an experiment better
Repeating it
Counting is an example of what step of the scientific method.
Observation
If the soil is fertilized more, then twice as many bushels of potatoes will be produced
Independent: fertilizer
Dependent: Number of potatoes
This is what you should do with your long hair when entering a lab.
Tie it Back
The factor in an experiment that you change in order to see the effects.
a variable (independent variable)
This is the variable that stays the same
What is the independent variable
If the lemon trees receive more water, then they will produce more lemons. Name the independent and dependent variables
Independent: Water
Dependent: Number of lemons
The person responsible for cleaning up broken lab equipment
The teacher
This is a tool you could use to measure the length of objects?
ruler, meter tape, measuring tape, yard stick, etc.
How many factors or variables should be tested at one time, to ensure a fair test?
one
In a lab testing whether yeast is living or nonliving, gas is produced, indicating that it is living. Temperature is changed to provide two different conditions for the yeast. Temperature would be what kind of variable?
Independent
when heating a substance in a test tube, always point the open end
away from yourself and others
This is a tool you can use to measure the amount of heat in a substance.
thermometer
The group that is not tested; it is left normal for comparison
control group
What axis does the dependent variable go on
Y axis
This type of shoes should never be worn on lab days
open toed shoes
This is a tool you can use to measure the volume (how much space something takes up) of a liquid.
beaker, measuring cup, graduated cylinder, etc.
A factor that does not change through the whole experiment. It is not a control.
a constant
What axis does the independent variable go on?
x axis
The location where you wash off chemical spills from your eyes
Eyewash station