Biology is the study of:
a. matter.
b. life.
c. outer space.
d. plate tectonics.
b) life
100
When you are making a batch of lemonade, what scientific measurement are you using when you measure and
add the water?
a. Area.
b. Mass.
c. Temperature.
d. Volume.
d. volume
100
Jorge discovered that a piece of bread left in a sandwich bag had developed a black mold-like substance
growing on its surface. Answer the following questions about Jorge’s discovery.
To determine how the mold got there he should:
a. perform a scientific experiment.
b. assume that the mold was blown onto the bread by an air current.
c. ask someone at home.
d. just throw the bread away because there is not way to answer the question.
a. perform a scientific experiment.
100
In order for scientists from around the world to share their data, they use a common system called the ____.
a. control system.
b. English system.
c. scientific system.
d. International System of Measurement.
d. International System of Measurement.
100
When determining the mass of your friend, Anastasia, you would use:
a. grams.
b. centimeters.
c. kilograms.
d. liters.
c) kilograms
200
This year in biology, Maria can expect to learn about all of the following EXCEPT:
a. cells.
b. worms.
c. coyotes.
d. volcanoes.
d) volcanoes
200
The instrument used for measuring volume is a:
a. graduated cylinder.
b. ruler.
c. thermometer.
d. balance.
a) graduated cylinder
200
Jorge discovered that a piece of bread left in a sandwich bag had developed a black mold-like substance
growing on its surface. Answer the following questions about Jorge’s discovery.
In Jorge’s bread mold experiment, he used the same brand of bread and sandwich bags. He placed the sealed
bags in places that had varying temperatures. Temperature is the:
a. controlled variable.
b. hypothesis.
c. analysis.
d. experimental variable.
d. experimental variable.
200
The downward curve of water in a graduated cylinder is called:
a. a meniscus.
b. a flask.
c. a cylinder bubble.
d. an air pocket.
a) a meniscus
200
Units of concentration are used when measuring:
a. the temperature of a fish tank.
b. the amount of water a plant needs.
c. levels of dissolved oxygen in water.
d. the mass of a rabbit.
c) levels of dissolved oxygen in water.
300
A hypothesis:
a. may be correct, partially correct, or incorrect.
b. is always wrong.
c. is always right.
d. should be a random guess.
a) may be correct, partially correct, or incorrect.
300
Mass is a measurement of:
a. how hot or cold something is.
b. anything that has mass and takes up space.
c. how much surface something has.
d. the amount of matter that makes something up.
d. the amount of matter that makes something up.
300
Jorge discovered that a piece of bread left in a sandwich bag had developed a black mold-like substance
growing on its surface. Answer the following questions about Jorge’s discovery.
Jorge decided to perform his experiment many times to be sure that his results were accurate. Each of his
experiments is:
a. a hypothesis.
b. a trial.
c. a conclusion.
d. data.
b) a trial
300
A factor that affects the behavior of a system is called a(n):
a. natural law.
b. experiment.
c. analysis.
d. variable.
d) variable
300
Mao just got a new fish tank and is trying to determine what concentration of dissolved oxygen would be best
for the fish. Using a kit, he determines the dissolved oxygen in his tank to be 12 ppm, but he doesn’t know
what that means. Using your science skills, you tell him that 12 ppm means:
a. there are 12 mg of oxygen dissolved in every milliliter of water.
b. his fish tank can only hold 12 different types of fish.
c. there are 12 mg of oxygen dissolved in every liter of water.
d. the fish tank’s temperature can reach a low of 12 degrees.
c. there are 12 mg of oxygen dissolved in every liter of water.
400
Name three different kinds of scientists.
astronaut, biologist, chemist
400
It would be best to measure the length of an earthworm in:
a. milliliters.
b. centimeters.
c. degrees.
d. kilometers
b) centimeters
400
The scientific method is used to solve many problems. One of the first steps is:
a. collecting data.
b. analyzing data.
c. asking a question.
d. drawing a conclusion.
c) asking a question
400
A variable that is unchanged throughout an experiment is called the:
a. controlled variable.
b. experimental variable.
c. independent variable.
d. dependent variable.
a) controlled variable
400
The independent variable on a graph:
a. is drawn on the x-axis.
b. is controlled during the experiment.
c. causes the change in the experimental system.
d. All of the above
d) All of the above
500
Are you a scientist, why or why not?
Yes, you are a scientist when you have questions, make observations, collect data, and analyze it to support or refute your hypothesis.
500
In a direct relationship:
a. as one variable increases, so does the other.
b. when one variable increases, the other decreases.
c. there is no change in data.
d. variables change randomly.
a) as one variable increases, so does the other.
500
What are the different steps in the scientific method?
Make Observations
Ask a question
Form a hypothesis
Test the hypothesis with an experiment
Create a procedure
Collect Data
Analyze and Make a Conclusion
500
How many liters are in a dekaliter?
10 liters = 1 dekaliter
500
A line graph is used when:
a. one variable causes a second variable to increase.
b. comparing data.
c. comparing categories such as percentages.
d. plotting all scientific data.
a) one variable causes a second variable to increase.