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Unit 1: Introduction to Biology

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
The parts of the experiment that must be kept the same.
a)
Constants
b)

Independent variable

c)

Dependent variable

d)

Conclusion

2.

Maya designed an experiment to answer the following question:

How does the amount of water given to a lima

bean seed affect how tall it grows?

In this experiment, what variable should Maya CHANGE?

a)

the amount of water

b)

the kind of plant

c)

the type of soil

d)

the amount of sunlight it gets

3.

Why is the placebo effect used?

a)

To compare results between the real medicine and placebo

b)

To make new medicine

c)

To train doctors

d)

To make food

4.
How many variables should you change in an experiment?
a)
none
b)

only 1

c)
2 or more
d)
depends on the type of experiment
5.

The type of variable that responds to the experiment and is what you measure or count to determine if your hypothesis is true.

a)
Independent
b)
Dependent
c)
Control
6.
Three baseball players investigate to see who can throw a baseball the farthest. They mark off an area on the playground for their investigation. Which should they keep constant?
a)
height of the players
b)
color of the balls thrown
c)
order in which the players throw
d)
spot from which the players throw
7.
Dory set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
ball type
8.
What is the factor that an experimenter changes on purpose?
a)
Dependent Variable
b)
Independent Variable
c)
Constant
d)
Control
9.

A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

a)
the male alligators
b)
the incubator
c)
the gender of the alligator
d)
the temperature
10.
In this graph, what is the independent variable? 
a)
Population
b)
Day
c)
Species 5
11.
In this graph, what is the dependent variable? 
a)
Walla Walla Island
b)
Time
c)
Number of Deer
12.

Using the picture, identify the control group.

a)

Trial 1

b)

Trial 2

c)

Trial 3

13.

What makes a good scientific question?

a)

The question can be answered by yes or no.

b)

The question can be answered by doing an experiment.

c)

The question can be answered through extended thought.

14.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)

procedure or test

d)
conclusion
15.
Which of the following is an explanation for a natural phenomenon that is supported by a large body of scientific evidence?
a)
scientific theory
b)
scientific law
c)
hypothesis
d)
observation 
16.
Which of the following is a testable statement to be falsified? 
a)
scientific theory
b)
scientific law
c)
hypothesis
d)
observation 
17.
Which of the following is a generalized description of a fact of nature that is observed over and over again? 
a)
scientific theory
b)
scientific law
c)
hypothesis
d)
observation 
18.
Which of the following is NOT a part to cell theory? 
a)
The cell is the most basic unit of life.
b)
All living things are made of cells.
c)
All cells come from pre-existing cells.
d)
Life comes from non-living matter.
19.
Who first observed cells using a piece of cork & coined the term "cell?" 
a)
Robert Hooke
b)
Anton van Leeuwenhoek
c)
Matthias Schleiden
d)
Theodor Schwann
20.
What theory explains that disease is called by microbes? 
a)
Cell Theory
b)
Miasma Theory 
c)
Germ Theory 
d)
Endosymbiotic Theory