# Scientific Variables: Question Preview (ID: 22080)

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**In the following hypothesis, identify the independent variable: If the temperature of water is higher, then the faster an egg will boil.**

a) amount of water

b) temperature of water

c) time it takes an egg to boil

d) the size of the egg

**A student wanted to find out which brand of paper towel absorbed the most water. What is the dependent variable?**

a) brand of paper towel

b) size of paper towel

c) amount of water

d)

**Identify the independent variable in this problem: How does the amount of oxygen in the water affect the oyster population?**

a) oyster population

b) location

c) amount of oxygen in the water

d)

**In this problem what is the dependent variable: Does the size of a soccer ball affect how easy it is to juggle?**

a) size of soccer ball

b) person juggling

c) how easy it is to juggle the soccer ball

d)

**Identify the independent variable in this question: How does the length of string affect the number of times a pendulum will swing back and forth?**

a) length of string

b) number of times pendulum swings back and forth

c) the pendulum

d) the person conducting the experiment

**An investigation was done to see if more bushels of potatoes would be produced if the soil was fertilized more. What is one constant needed?**

a) type of potato planted

b) amount of potatoes grown

c) amount of fertilizer used

d)

**An experiment was done with six groups of children to see if scores on their weekly spelling tests were affected by the number of minutes of spelling practice they had each day. What is the independent variable?**

a) scores on the weekly spelling test

b) six groups of students

c) number of minutes of spelling practice

d)

**Identify the dependent variable in the problem listed: How does the distance from an eye chart affect the number of letters that are recognized?**

a) distance from eye chart

b) the eye chart

c) number of letters recognized

d) person taking the test

**Identify a constant needed in this problem: How does the size of a bicycle tire affect the distance it will travel when it is pedaled a set number of times?**

a) the size of bicycle tire

b) the bicycle

c) the distancde traveled

d)

**Identify the independent variable in this problem: How does the size of a bicycle tire affect the distance it will travel when it is pedaled a set number of times?**

a) size of tire

b) distance the bike travels

c) the bike

d)

**Identify the dependent variable in this problem: Will apple trees receiving the most water produce the sweetest apples?**

a) amount of water

b) location of the trees

c) sweetness of the apples

d)

**Identify the independent variable in the problem listed: How does the distance from an eye chart affect the number of letters that are recognized?**

a) distance from eye chart

b) the eye chart

c) number of letters recognized

d) person taking the test

**Identify a constant needed in the following experiment: If a ball is dropped from a higher height, then the ball will bounce higher.**

a) the height

b) the ball

c) the bounce

d)

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