quiz 4 measurement to graphs

1.a prediction made or conclusion drawn from insight gained from an established principle or law 2. an initial proposed explanation for a phenomenon 3. A statement that explains what something does under similar conditions and is broadly agreed upon by the science community. 4. real reasoning based on facts 5. initial idea which is believed to be true 6. generalized descriptions based on senses 7. description based on numbers, mathematics, or measurements 8. ideas resulting from the personal feelings, emotions, or bias 9. a generalized model that explains how something happens and is used to explain observations

1. deductive reasoning 2. hypothesis 3. law 4. objective 5. presupposition 6. qualitative 7. quantitative 8. subjective 9. theory

Which statement is not true about a scientific law?

A scientific law is always verified by a mathematical equation.

Which part of a graph helps you understand the units of measurement?

Axes labels

All scientists observing the same event will record identical descriptions.

False

Computers are capable of inductive reasoning.

False

When analyzing a graph, why is it important to consider the scale of the axes?

It affects the interpretation of data trends.

If you need to show a plant's growth rate over several weeks, which graph should you use?

Line graph

Identify any pattern(s) and/or irregularities within the data points using the graph you created in question #11. Explain thoroughly. (at least three complete sentences)

The graph told me that as the number of hours increased, so did the and the GPA scores. It also showed that most of the students, which were 6, studied for 4 hours every day for that week. The graph also showed me that the two who had the highest GPA were the ones who studied for 12 hours. The graph showed also that only 1 student studied for 2 hours. Now I can conclude that the graph was correct in the representation of the table because it showed the same numbers as the table.

What is the purpose of a line graph?

To highlight the overall direction of the data

What is the primary reason for using a graph to represent data?

To provide a visual summary of data relationships.

A theory should be able to explain the relevant data and lead to correct predictions.

True

Absolute proof about the origin of a crater on the moon or the "star of Bethlehem" cannot be determined using the scientific method.

True

Conclusions related to historical events are limited to evaluating the existing evidence.

True

Hypotheses about historical singular events are not testable by the scientific method because they are not repeatable.

True

In forming a hypothesis one must carefully review his presuppositions to be sure they are not biased.

True

Inductive reasoning requires creative thinking.

True

If a scatter plot shows a cluster of points forming an upward trend, this suggests ___.

a positive correlation.

A hypothesis is made:

after gathering initial data and defining the research

When conducting an experiment, a scientist should:

attempt to control the conditions

Scientific predictions based on laws are formulated using:

deductive reasoning

When interpolating data from a graph, you are:

estimating values within the data range.

The initial explanation for a phenomenon prior to experimentation is called a(n):

hypothesis

Forming a hypothesis is accomplished through reasoning

inductive

If you need to estimate a value that falls between two known data points on a graph, you would ___.

interpolate

A theory which repeatedly fails to confirm the expected predictions after extensive research::

is probably incorrect

Descriptions based on measurement or reasoning free of bias are:

objective

Extrapolation involves ___.

predicting values outside the data range.

An observation which is descriptive is considered:

qualitative

An observation which requires measurement is called:

quantitative

To ensure accurate recall of the experimental data, at minimum one should:

record the data in writing

A published hypothesis:

should be tested by the scientific community

Conclusions drawn from personal beliefs are:

subjective

In a bar graph, the height of each bar represents ___.

the frequency and value of the data.

A hypothesis which appears to be verified by multiple experiments and/or researchers may become a:

theory