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Science Finals 30

Variable anything that you can change in an experiment that might effect the out come
Independent Variable a variable that is changed by the experiment
Dependent Variable a variable that will change due to the independent variable being changed. It is the one you mesure to get your results
Conatant Variable variable that is controlled (not changed)
Conrolled Experiment an experimant in which one and only one variable is changed in order to asses (juudge) its effect
Standard the basic procedure used in a controlled experiment; before changing any of the variables
Capacity the greatest amount of fluid a container can hold
Density the amount of amtter that will fit in a given space
Archimedes mathmacian and scientist who use displaced water to tell about an object
Galileo italian astronomer and physicist who thought pendulms could be used to keep track of time
Wright Brothers they created the first plane with the first flight
Bessie Coleman the first african american woman to recieve her pilot's license
Chuck Yeager the first pilot to break the sound barrier
List the steps of the scientific mathod? 1. state the question 2. collect information 3.form a hypothasis 4. test the hypothasis 5. observe,record, analyze data 6.draw conclusions
What can a person do to get more accurate results in a experiment? test it more that onceand get an average, use smaller units, and test all veriables
Which variables were tested in the pendulum system? length of string, hight it was dropped from, mass at the end of the string (bob)
what is the relationship between the length of the string and the numbeer of cycles of the pendulum system? the shorter the string the more cycles. The longer the string the less cycles.
Which variables affect the number of passengers needed to sink the boat in the lifeboat experiment? capacity of boat, conditionof water, and placment of pennies
What is the relationship between the capacity of a boat and the number of pennies needed to sink it? the bigger the capacity the more pennies. The smaller the capacity thelass pennies.
What is the relationship between the mass of the plane and the distance it can fly? the more mass the less distance it flys. The less mass the more distance it flys.
Explain what determines whether an object will sink or float? if its density is greater than thwe water's density it will sink. If the density is lesser than the water's density then it will float.
What is the relationship between the number of winds of a propeller and the distance it can fly? the mor winds the greater distance it flys. The less winds the lesser distance it will fly.
What variables affected the distance a FOSS plane could fly? the number of winds, and the weight of the palne, and the thickness of the rubber band
Explain the purpose of a two-cordanite graph? It allows one to make predictions about future trails
Created by: JPerley