# Bio EOC Review Packet 2.doc - Biology EOC Review Packet...

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Biology EOC Review PacketScientific MethodBrodyn Wilson1)What is the difference between a hypothesis and a prediction?
Prediction: ____A prediction is a guess about what an outcome will be or what will happen in the future, usually based upon a hypothesis.___________________________________________________________________________________________2)Why do scientists use a control group in experimental design?__To make sure there aren’t any other variables at play except the ones they want during anexperiment_____________________________________________________________________________________________________3)Susie wondered if the height of a hole punched in the side of a quart-size milk carton would affect how far from the container a liquid would spurt when the carton was full of the liquid.She used 4 identical cartons and punched the same size hole into each.Susie recorded her results in the chart below.a)What is the independent variable? ____A variable that does not depend on another variable. ___________________b)What is the dependent variable?_a variable that does depend on another variable.______________________c)Write a hypothesis for this experiment..____________________________________The higher the height of the hole the more liquid that spurts out. _________________d)Prediction the distance (in cm) if the height of the hole punched in the container was 25 cm?__________50cm__________________e)Graph Susie’s results.Height of Hole(cm)25201510501020304050Distance of Liquid spurts(cm)f)Describe the relationship between the height of the hole and the distance of the liquid.________________For Every 5 centimeters in height there is 10 centimeters in distance of liquid spurts._________________________________________________________________________4)A group of college students were given a short course in speed-reading. The instructor was curious if a monetary incentive would influence performance on a reading test taken at the endof the course. Half the students were offered \$5 for obtaining a certain level of performance on the test, the other half were not offered money.Independent variable:_____________________________the money given.Dependent variable:____Performance on the test.Experimental group:__________Students not offered money.Control group:___Students offered money.WaterBrodyn Wilson5)What is cohesion?_______When two or more molecules that are different stick together.

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Term
Spring
Professor
mr.morgan
Tags
DNA, Brodyn Wilson