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BIO122 CHAPTER 2_Part 1

Total questions: 50

Worksheet time: 7hrs 3mins

Name
Class
Date
1.

Factors that are changed by the experimenter on purpose to be tested are the_______

a)

Independent variables (IV)

b)

Dependent variables (DV)

c)

Constants

2.

Data that are measured/collected during the experiment are the_______

a)

Independent variables (IV)

b)

Dependent variables (DV)

c)

Constants

3.

Based on this graph, which statement would be the best conclusion about the effect of temperature on bacterial growth?

a)

The highest rate of bacterial growth is around 25 °C

b)

The highest rate of bacterial growth is around 35 °C

c)

The highest rate of bacterial growth is around 45 °C

4.

A possible explanation that is tested and could be supported or rejected at the end of an experiment is _______

a)

theory

b)

law

c)

hypothesis

5.

The diagram shows a plant growth investigation. The hours of light exposure, the plant type, and the soil volume are ___

a)

Independent variables (IV)

b)

Dependent variables (DV)

c)

Constants

6.

The diagram shows a plant growth investigation. Which variable is most likely being tested (Independent Variable)?

a)

Soil volume

b)

Hours of light exposure

c)

Soil pH

d)

Plant type

7.

John investigated the water holding capacity of 3 different compositions of sand.

Based on John's data, what is the BEST composition to hold water?

a)

Composition A

b)

Composition B

c)

Composition C

8.

Examine the line graph. What is the dependent variable?

a)

Temperature Anomaly

b)

Years

c)

NASA

9.

A student is investigating the pollution's effect on the growth of three groups of seeds.

The results of this experiment will NOT be valid because he tested too many____________.

a)

variables

b)

inferences

c)

hypotheses

d)

conclusions

10.

If a biology student wants to do research on a genetic disease, which of these resources is the most reliable and current one?

a)

science textbook

b)

science journal

c)

newspaper

d)

social media

11.

Which statement is a correct Qualitative observation?

a)

Eight people are standing in front of a building.

b)

There are 9 posters on the building's door.

c)

Those people are waiting to see their grandma.

d)

All the people are wearing masks.

12.

Pick tow Quantitative observations?

(SELECT 2)

a)

Eight people are standing in front of a building.

b)

There are 9 posters on the building's door.

c)

Those people are waiting to see their grandma.

d)

All the people are wearing masks.

13.
The summary at the end of an experiment that explains the results is... 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
14.

What is the last step of scientific method?

a)

hypothesis

b)

observe

c)

communicate

d)

question

15.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
16.

The information you collect while doing your experiment is called

a)

conclusions

b)

data

c)

hypotheses

d)

procedures

17.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
18.
If I study for my scientific method test, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
19.

The independent variable is

a)

The variable that you change in an investigation

b)

The variable that you measure in an investigation

c)

A variable that you keep the same in an investigation

20.

Percentage of people who have different colour eyes. Which graph type is most appropriate

a)

Bar or column graph

b)

Scatter or line graph

c)

Pie chart

d)

None of these

21.

The process of obtaining information by using the senses is called a/an

a)

Conclusion

b)

Observation

c)

Inquiry

d)

Scientific method

22.

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What are two CONSTANTS? (Select 2)

a)

Using the same type of plant

b)

Each plant was placed in a 10 inch pot

c)

The growth of the plant

d)

One plant is in the sunlight and the other is under a box

23.
What would the INDEPENDENT variable be in an experiment testing which  paper airplane design goes furthest?
a)
the paper used
b)
the paper airplane design
c)
the distance of each plane's flight
d)
how hard the plane is thrown
24.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

25.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

26.
As the temperature increased, did the amount of solute that dissolved increase or decrease?
a)
Increase
b)
Decrease
27.
Determine which graph (A, B, or C) best represents the information in the table.
a)
A
b)
B
c)
C
28.
Each day, at the same time of day, I measure the plant's height and record it in my chart.  What variable am I recording?
a)
Independent Variable
b)
Dependent Variable
c)
Constant
d)
Control
29.
In my plant experiment, one plant got fertilizer and one did not.  The one that did not receive the independent variable is the plant I will compare to the plant that got the IV.  What is that variable?
a)
Independent Variable
b)
Dependent Variable
c)
Constant
d)
Control
30.
A student wanted to see which color board reflects more light.  They test this by taking the temperature of the board. The board that reflects the most light will have the lowest temperature.  They use 2 white boards, one with light and one without & 2 black boards, one with light and one without.
What is the control variable?
a)
The color of the board
b)
The amount of light reflected
c)
The boards with light
d)
The boards with no light
31.
What is independent variable?
a)
The distance from North and South Lake
b)
The Temperature
c)
The summer
d)
South Lake
32.
What is the dependent variable?
a)
Amount of each trash
b)
Type of trash
c)
Where the trash is located
d)
When the trash was picked up
33.

observations that are made using numbers or measurements.

a)

quantitative data

b)

variable

c)

qualitative data

d)

constant

34.

variables that stay the same through out an experiment.

a)

constant

b)

hypothesis

c)

variable

d)

independent variable

35.

a prediction that can be tested.

a)

constant

b)

variable

c)

hypothesis

d)

dependent variable

36.

A well designed experiment should be able to be repeated.

a)

true

b)

false

37.

Counting the number of barnacles on a boat would be what type of data?

a)

qualitative

b)

quantitative

c)

quick

d)

quiver

38.

Describing the barnacles on a boat would be what type of data?

a)

qualitative

b)

quantitative

39.

What must you do before you make a hypothesis?

a)

Run an experiment

b)

Make observations

c)

Form a theory

d)

Draw conclusions

40.

A hypothesis is never wrong.

a)

True

b)

False

41.

When we write a conclusion, we state

a)

that our hypothesis was correct or incorrect.

b)

that our hypothesis was proven or disproven.

c)

that out hypothesis was a good guess or a poor guess.

42.
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
43.
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, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
44.
Why is it important for people to understand scientific principles and to think scientifically? 
a)
It allows people to make informed decisions.
b)
It helps people estimate costs of products
c)
It helps people choose where to live
d)
It allows people to explain sports like an expert
45.
What can you infer about the temperature for E.coli bacterial growth?
a)
E. coli does not grow well at low and high temperatures.
b)
E coli will continue to grow at very high temperatures.
c)
E.coli grows best at very low temperatures
d)
E.coli grows best at very high temperatures.
46.

What is the purpose of controlled variables

a)

To control what happens in the investigation

b)

To make the investigation valid

c)

To make the investigation reliable

47.

A series of steps used by scientists to solve a problem or answer a question.

a)

Hypothesis

b)

Scientific method

c)

Data collection

d)

Experiment

48.

The plastic bottle holds two liters of soda. Is this a Qualitative Observation, Quantitative Observation, or an Inference

a)

Qualitative Observation

b)

Quantitative Observation

c)

Inference

49.

What is a control?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

50.

Repetition in an investigation makes the data

a)

accurate

b)

replicated

c)

science-y

d)

in a graph

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