Quiz about Nature of Science

Question 1

Which of the following might lead to the changing of a scientific idea?

Accepted Answer

a scientist gets results that do not fit a current idea and other scientists find his results are valid

Answer

A scientist describes an experiment to a group of students

Answer

A scientist gets the same results when repeating an experiment a second time

Answer

a scientist has to redo her experiment because she finds the correct procedure was not followed

Question 2

What skill are you using when you see a red spot on a desk.

Accepted Answer

observation

Answer

posing a question

Answer

classifying

Answer

hypothesis

Question 3

When using the scientific method, the problem is written as a(n)

Accepted Answer

question

Answer

explanation

Answer

statement

Answer

essay

Question 4

A testable idea or explanation that leads to a scientific investigation is called (can be stated as an if/ then statement)

Accepted Answer

hypothesis

Answer

conclusion

Answer

experiment

Question 5

The variable that stays the same

Accepted Answer

constant

Answer

independent

Answer

dependent

Answer

control group

Question 6

I see that Mrs. McDermott is holding a coffee cup, I assume that there is coffee in the coffee cup.  By making the assumption that there is coffee in the mug, I have made a(n)

Accepted Answer

inference

Answer

observation

Answer

classification

Answer

experiment

Question 7

Sometimes scientist imitate something that is too big or too small to work with by creating a(n)

Accepted Answer

model

Answer

experiment

Answer

data station

Question 8

Justin blows his nose, but mucus seems to leak through the tissue. He decides to test which tissue holds up the best while sneezing. What is the independent (the variable that is changed) variable?

Accepted Answer

type of tissue

Answer

sneezing

Answer

Justin

Answer

amount of tissue

Question 9

A ___________________ is a set of steps that tell us how to complete an investigation.

Accepted Answer

procedure

Answer

hypothesis

Answer

experiment

Answer

conclusion

Question 10

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

Accepted Answer

Observing

Answer

Inferring

Answer

Predicting

Answer

Hypothesizing

Question 11

Rigoberto writes down his hypothesis that more salt will dissolve in cold water than in warm water. He adds salt to different temperatures of water and records his observations including the amount of undissolved salt. He finds that there is more salt dissolved in warm water than cold water. What should Rigoberto do next to make sure that his conclusion is valid?

Accepted Answer

repeat his investigation to see if his results are the same

Answer

do another investigation with sugar

Answer

repeat his investigation using a different liquid than water

Answer

change his results to match his original hypothesis

Question 12

How many variables should be changed in a simple experiment?

Accepted Answer

1

Answer

5

Answer

3

Answer

6

Question 13

Why are repeated trials important in a scientific investigation?

Accepted Answer

They make sure that the results are valid.

Answer

They determine the outcome of an experiment.

Answer

They help experiments work.

Answer

They are a legal procedure.

Question 14

Harry decided to study insects. He marked off an area in his yard with string. Each day he observed the insects within the area with a hand lens. He recorded the kinds of insects he saw and the number of each kind. How could Harry best communicate to his classmates the kinds and numbers of insects in his study area?

Accepted Answer

Graph his data.

Answer

Take a picture of some of the insects

Answer

Write a story about his favorite insect.

Answer

Tell someone about the insects he saw.

Question 15

Marcia did an experiment to find out whether tulips grow faster under fluorescent lighting or incandescent lighting. Under flourescent lighting, Marcia's plants grew 1.5 cm taller in two months. She gave her notes to Alex, who did the same experiments with similar results. Which term describes Alex's experiment?

Accepted Answer

repitition

Answer

plagiarism

Answer

replication

Answer

pseudo science

Question 16

Which question would be best to answer using a scientific investigation?

Accepted Answer

Does temperature affect the amount of rain?

Answer

Why are people afraid during thunderstorms?

Answer

How easy is it to shovel snow?

Answer

Are some clouds prettier than others?

Question 17

A scientist says that she has made an important discovery about sound waves. What needs to happen for most other scientists to accept her results?

Accepted Answer

Other scientists need to be able to get the same results.

Answer

The scientist has to explain her results to other scientists.

Answer

Many scientists need to review the results.

Answer

The scientist needs to publish her results in a journals.

Question 18

Jaylynn says a baseball and a basketball will fall at the same speed. Her friend disagrees. Which of these is the best way for them to find out?

Accepted Answer

drop both balls from a high place and compare how fast they fall

Answer

ask an adult which one is right

Answer

explain their reasons to each other

Answer

ask twenty different people on the playgroup what they think

Question 19

Jonathan and Renier dropped a rubber ball from the same height onto six different surfaces. They measured the height of each bounce and recorded their data. The graph shows their data. Based on the data, which of the following is the best conclusion?

Accepted Answer

A rubber ball bounces higher on harder surfaces.

Answer

All balls bounce higher indoors than they do outdoors.

Answer

The surface has no affect on the height of the bounce.

Answer

A rubber ball does not bounce as high as a super ball.

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