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WorksheetsSOL 4.1 Scientific Investigation
Total questions: 12
Worksheet time: 23mins
Name
Class
Date
1.
Sabrina wants to test which brand of popcorn pops the most kernels. She picked a store brand, Orville Redenbacher, and PopSecret. All three bags started with the same number of kernels. She popped each for 3 minutes in the same microwave, and then counted the number of kernels left over. What is her independent variable?
a)
Number of kernels left over
b)
Brand of popcorn
c)
number of kernels before popping
d)
length of time cooking
2.
Matt wants to test which liquid freezes first: Pepsi, milk, or apple juice. He poured 50 mL of each into separate glasses and placed them in his freezer. Every ten minutes, he checked his freezer and recorded his observations. Pepsi froze first, followed by apple juice and then milk. What is his dependent variable?
a)
type of liquid
b)
length of time until frozen
c)
amount of liquid
d)
location of freezer
3.
Betty wants to test which type of phone has the longest battery life. She is comparing iPhone 6 Plus, Samsung S5, and a Droid. She bought each phone new and charged them completely to 100%. Then, she turned each phone on and timed how long until the battery ran out. What is the independent variable in her experiment?
a)
brand of phone
b)
time until battery ran out
c)
time it took to charge to 100%
d)
outlet used for charging
4.
Kira wants to test which type of soda creates the biggest foam explosion when adding a Mentos candy. She chose Sprite, Coke, and Mountain Dew. One at a time, she added a single Mentos candy and measured the height of the foam eruption. Mountain Dew created a foam eruption of 7 inches. Coke and Sprite tied at 5 inches. What is her dependent variable?
a)
Brand of soda
b)
number of mentos candies used
c)
height of foam eruption
d)
temperature of soda
5.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
6.
You use your five senses to find out about the world around you. This is called...
a)
observations
b)
data
c)
conclusion
d)
scientific method
7.
Which variable must stay the same in an experiment in order for the experiment to be valid?
a)
Independent
b)
Dependent
c)
Constant
8.
A statement that uses "If"....."then" is called...
a)
an observation
b)
a conclusion
c)
a prediction
d)
a hypothesis
9.
What is the independent variable for the hypothesis: If ice melts in salt & fresh water, then it will melt faster in salt water.
a)
The amount of water
b)
The melt time
c)
The size of the ice cube
d)
The amount of salt
10.
The process of a scientific investigation is called the __________.
a)
Scientific steps
b)
Scientific Method
c)
Scientific Investigation
d)
Scientific Observation
11.
In the scientific method, _____________ often leads to questions.
a)
observation
b)
looking
c)
asking
d)
reading
12.
In an experiment the factor being tested or changed on purpose is called the -
a)
independent variable
b)
dependent variable
c)
constant
d)
experimental error
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