2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt ClassificationMeasurement Scientific Method VariablesVocabulary
A system that scientists use to compare characteristics of things
What is classification?
Both animals share the same color and the same food. AnimalColorLegsFood COWTri-color4Grass SHEEPWhite4Grass LIONYellow4Meat GOATTri-color4Grass
What are cows and goats??
Both vehicles have the same number of wheels, type of fuel, and no windows. tricyclecartrainwheelbarrow WindowsNoYes No PassengersNoYes No FuelNoYes No Wheels34Varies1
What are tricycles and wheelbarrows?.
These 3 characteristics are shared by cars and trains. tricyclecartrainwheelbarrow WindowsNoYes No PassengersYes No FuelNoYes No Wheels34Varies1
What are windows, passengers, and fuel?
A type of classification key that keeps dividing objects into two parts or branches such as BOYNOT A BOY SandalsNo Sandals earrings No earrings
What is a dichotomous key?
The standard unit for measuring DISTANCE in the metric system
What is a meter?
The standard unit used to measure VOLUME in the metric system
What is a liter?
This tool is used for measuring volume
What is a graduated cylinder?
What a gram measures
What is mass?
A tool used to measure mass
What is a triple beam balance?
Do repeated trial for this reason. Daily Double
How can we increase the validity of an experiment?
The first step of the scientific method
What is the problem?
A step-by-step plan to test a hypothesis
What is a procedure?
A prediction about the outcome of an experiment in the form of an If…then? statement
What is a hypothesis?
The five basic steps of the scientific method.
What is a problem, hypothesis, procedure, observations/data, and conclusion?
Factors in an experiment that can change
What is the a variable?
The variable that the experimenter changes on purpose, An controlled experiment should have only ONE of these variables
What is the Independent Variable?
If jellyfish are put in freshwater, then the jellyfish will die. It is the Independent Variable
What is the type of water?
The variable that is measured in the experiment The variable that changes as a result of the independent variable
What is the Dependent Variable?
If tennis balls are dropped from the different heights, then those dropped from the highest point will bounce the most. It is the Dependent Variable
What is how much (high) the tennis ball bounces.
Doing an experiment more than once to increase the validity of the data
What are repeated trials?
The act of using the 5 senses to take notice and gather information about the world around us.
What is observing?
A factor that remains the same in an experiment.
What is a constant ?
A picture, diagram, or other representation of something that cannot be directly observed.
What is a model?
An interpretation or an explanation for an observation.
What is an inference!