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# 5th Science-Variable

### 5th Science, End of Module Test, Variables

To control variables means to change one thing at a time
this is NOT a variable in a pendulum system time of day
what can you do to fix a clock that is running too slowly all the time shorten the pendulum
What does NOT affect the number of pennies needed to sink the boat in the lifeboat experiment you did in class? the shape of the basin that holds the water
If we set up an experiment to launch an aluminum ball, what angle would result in the greatest distance? 40 degrees
In an experiment, what two things can improve the accuracy of the results? 1. Repeating the experiment 2. Controlling all the variables that are not under investigation
In an experiment, this would NOT improve the accuracy of the results? Using larger units to record the results
A Pendulum system could be described as: the string, the paper clip, the penny, the masking tape and a pencil
A stone was launched using a catapult. However, the stone did not go over the wall. What two things could change on the catapult in order to get the stone over the wall? -use a lighter stone -change the angle of the catapult
The five parts of the catapult system are: spring, wheel, rock or ball, base, and arm
Created by: callenlsteacher
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