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Unit 1: The Nature of Science (Honors Biology)

Total questions: 45

Worksheet time: 54mins

Name
Class
Date
1.

The body of knowledge based on the study of the natural world, is known as what?

a)

Science

b)

Calculus

c)

History

d)

Athletics

2.

Which word below is defined as a series of problem-solving procedures that help scientists conduct experiments?

a)

independent variable

b)

dependent variable

c)

hypothesis

d)

scientific methods

3.

Which word below is defined as a testable explanation of a situation that can be supported or disproved by careful procedures?

a)

independent variable

b)

hypothesis

c)

scientific methods

d)

control

4.

Which word below is defined as the factor that is changed by the experimenter?

a)

independent variable

b)

dependent variable

c)

control

d)

hypothesis

5.

Which word below is defined as a factor that is affected by changes in the independent variable?

a)

independent variable

b)

dependent variable

c)

hypothesis

d)

control

6.
At one point in time, many people thought disease was caused by fate or by incorrect behavior. Following the invention of the microscope, bacteria were discovered. After this, a new theory of what causes disease arose that was known as the germ theory.  Why was the original theory modified? 
a)
It quickly became obvious that germs cause disease.
b)
The person who invented the microscope became ill.
c)
New evidence prompted revision to the original ideas.
d)
The proponents of the germ theory had political power.
7.
Eduardo is a conservation biologist. He needs to develop a plan to preserve wetlands. He begins his project by studying the data in the following chart. How is Eduardo using scientific methods in developing a plan?
a)
He is analyzing data about causes and effects.
b)
He is analyzing a hypothesis about causes and effects.
c)
He is proposing an experiment about causes and effects.
d)
He is using intuition to determine causes and effects.
8.
The independent variable is the ONE thing you _____.
a)
change on purpose
b)
control or keep constant
c)
measure
9.
Why do we want to test one variable at a time?
a)
Because it is hard to setup a data table with more
b)
To know what is causing the changes. This helps us understand cause and effect.
c)
It is what has always been done
10.
What is being kept constant?
a)
ramp height
b)
speed of the ball rolling
c)
type of ball
11.

Jackie sets up an investigation to find out how many paperclips she can pick up with an electromagnet. She takes a long iron nail, wraps insulated wire around it 40 times, and connects the wire ends to the opposite terminals of a D-cell battery.

Jackie touches the tip of the nail to a pile of 100 paperclips and picks up 15 of them. She tries the investigation again and picks up 15 paperclips. Jackie concludes that her electromagnet can pick up 15 paperclips. What should Jackie do to improve her investigation?

a)

Jackie should use a regular magnet and not an electromagnet.

b)

Jackie should use a different type of battery.

c)

Jackie should do more trials to make sure her results are valid.

d)

Jackie should begin with more than 100 paperclips.

12.

In 1897, Joseph Thomson discovered that atoms contained electrons. He proposed a change in the atomic theory of that time, and the theory was modified because of his discovery. Since Thomson’s discovery, atomic theory has been further modified. What is the best explanation for why scientific theories are modified?

a)

Theories more than ten years old are usually out of date.

b)

Scientists want to prove that the work of other scientists is wrong.

c)

New evidence that supports a change prompts scientists to modify earlier theories.

d)

So much information is available today that it is harder to focus research and disprove theories.

13.

What conclusions can you draw from this graph?

a)

The deer population went down over time.

b)

The deer population went up over time.

c)

The dear population went up quickly, then down, but then stayed the same.

d)

There are less dear because of hunters

14.

What was the temperature of the liquid in the Styrofoam container at 4:00?

a)

55 degrees

b)

68 degrees

c)

73 degrees

d)

63 degrees

15.

What information is NOT shown in this diagram of the solar system?

a)

the names of planets

b)

the order of the planets

c)

the path the planets travel in their orbit

d)

the distance between the planets

16.

The things that are kept the same to ensure the results are due to the experiment is called..

a)

Constant

b)

Dependent Variable

c)

Independent Variable

17.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as 
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
18.
Its one of the independent variables that is use for comparison, does not get any change, original or plain variable.
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
19.
Which brand of paper towel will absorb the most liquid? What is the independent variable?
a)
Brand of paper towel
b)
Amount of water absorbed
20.
Which brand of paper towel will absorb the most liquid? What is the dependent variable?
a)
brand of paper towel
b)
amount of water absorbed
21.

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the independent variable?

a)

time on social media

b)

computer skills

22.

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the dependent variable?

a)

popularity

b)

grades

23.

What is the basic unit of mass in the metric system?

a)

Liter

b)

Meter

c)

Gram

d)

Kilometer

24.
Which unit is the smallest?  
a)
km
b)
mm
c)
m
d)
cm 
25.
Convert 5 cm to mm:
a)
5,000mm
b)
0.5 mm
c)
0.05 mm
d)
50 mm
26.

3.85 hg = _____ cg

a)

38,500

b)

3,850

c)

38.5

d)

0.000385

27.

378 mL = (a)   kL

enter the number value only

28.
Which unit is a a measure of volume?
a)
meters
b)
grams
c)
inches
d)
liters
29.

Which of the following options is the base unit?

a)

kilometer

b)

centimeter

c)

meter

d)

millimeter

30.

On what number is the metric system based?

a)
10
b)
20
c)
1
d)
100
31.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

32.
If you break glassware in the lab, you should...
a)
Tell the teacher
b)
Clean it up quickly before the teacher notices
c)
Scream at the top of your lungs
33.
When is it OK to eat or drink in the lab?
a)
Always
b)
Never
34.

What scientific tool is used to measure volume of liquids, such as water and chemicals?

a)

Meter Stick

b)

Ruler

c)

Graduated Cylinder

d)

Triple Beam Balance

35.

What scientific tool is best to measure the length of a classroom?

a)

Meter Stick

b)

Ruler

c)

Graduated Cylinder

d)

Triple Beam Balance

36.

What scientific tool is used to measure the mass of an object like a beaker?

a)

Meter Stick

b)

Ruler

c)

Graduated Cylinder

d)

Triple Beam Balance

37.

Data that is measurable and includes NUMBERS. Examples of this kind of data include shoe size and height.

a)

Qualitative

b)

Quantitative

c)

It's both quantitative and qualitative

38.
What is the correct volume of the blue liquid?
a)

5 mL

b)

15 mL

c)

20 mL

d)

25 mL

39.

Which unit would you use to measure the length of a ballpen?

a)

kilometer (km)

b)

meter (m)

c)

centimeter (cm)

d)

millimeter (m)

40.

abbreviation

meter

a)

m

b)

mm

c)

mr

d)

mt

41.

abbreviation

centimeter

a)

c

b)

cm

c)

cg

d)

cmm

42.

abbreviation

gram

a)

gr

b)

g

c)

ga

d)

gm

43.

abbreviation

milliliter

a)

mL

b)

mLL

c)

mmL

d)

mm

44.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
45.

Gerry is testing the effect of caffeine on heart rate. Which of the following would be a good control group?

a)

Same amount of caffiene

b)

Group given a little caffiene

c)

Group given no caffiene

d)

Group with the resting heart rate

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