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Nature of Science

Total questions: 20

Worksheet time: 40mins

Name
Class
Date
1.

Pseudoscience is not considered a science because ____.

a)

pseudoscience includes a hypothesis

b)

pseudoscience is not supported by evidence

c)

pseudoscience has no conclusion

d)

pseudoscience is a continuing cycle

2.

Which of the following is true about a scientific theory?

a)

a scientific theory is an explanation

b)

scientific theories will eventually become scientific laws

c)

scientific theories are not supported by evidence

d)

scientific theories are usually rejected because they are only theories

3.

Evolution is an example of ______.

a)

a scientific theory

b)

pseudoscience

c)

a law

d)

science without evidence

4.

What is the difference between a scientific theory and a scientific law?

a)

Theories and laws are the same thing: there is no difference.

b)

A theory will eventually become a law after a long period of time.

c)

A theory is an explanation of the natural world and a law is a description of the natural world.

d)

Theories and laws switch back and forth depending on the situation.

5.

Which of the following best describes a hypothesis?

a)

A hypothesis is an educated guess to a parent's question.

b)

A hypothesis is the probability an event will occur such as winning the lottery.

c)

A hypothesis is a prediction about what will happen based on observations and evidence.

d)

A hypothesis occurs when you fall into freezing water and become very, very cold.

6.

Laboratory experiments allow scientists to make precise observations. Which of the following is NOT and observation made in a laboratory experiment?

a)

making observations about the effect of fertilizer on plants growing in the lab

b)

comparing the colors of flowers grown in an experiment

c)

measuring the growth of plants exposed to different amounts of sunlight

d)

counting the human population in the State of Florida

7.

Which choice is an independent variable?

a)

measuring the distance a student can jump in meters

b)

counting the number of ants in population

c)

measuring the lengths of students' hair

d)

providing different levels of sunlight to plants in an experiment

8.

Sea surface temperatures have a large influence on climate and weather. The surface temperatures of the Atlantic Ocean can vary through the different seasons. During the summer, it can reach about 30 degrees Celsius. The data above is known as _________.

a)

qualitative

b)

scientific

c)

constant

d)

quantitative

9.

Using one or more of your senses to gather information is called

a)

Inferring

b)

Observing

c)

Predicting

d)

Hypothesizing

10.

A testable prediction is a

a)

theory

b)

law

c)

hypothesis

d)

conclusion

11.

The Skittles are yellow, red and green is an example of _____.


a)

qualitative observations

b)

quantitative observations

c)

hypothesis

12.

The variable that is changed by the scientist to test a hypothesis is called the _________________________ .

a)

dependent variable

b)

independent variable

c)

control

13.

Which is the best description of the dependent variable?

a)

the variable that is changed by the scientist

b)

the measurable variable

c)

the variable that does not change

14.

Which of the following should be a goal of a scientific investigation?

a)

to help the scientist make money

b)

to make sure the scientist is correct

c)

to help the scientist solve a problem

15.

A prediction about a problem that can be tested is ____________________

a)

variable

b)

hypothesis

c)

theory

d)

law

16.

One way to analyze data from a study is to _____________

a)

make a graph

b)

develop a hypothesis

c)

recognize a problem

17.
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
18.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
19.
A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
20.

Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.

What was the dependent variable?

a)

The Song

b)

The Reed

c)

The Applause