1I Unifying Science Processes

Question 1

What is science?

Answer 1

Science is a field of intellectual study that involves analyzing the structure and behavior of the physical world through observation and experiment.

This assumption makes it possible to use the scientific method to understand the world.

Question 2

Describe the importance of the scientific method?

Answer 2

• A systematic approach scientists use to collect and analyze data.
• Involves controlling variables to isolate the effect of one.
• Allows for understanding the cause-and-effect relationship.

Question 3

How does science view certainty?

Answer 3

Science never truly proves anything with certainty, but builds a body of evidence that makes ideas highly probable.

Question 4

What is the importance of measurement and statistics in science?

Answer 4

• Measurements are limited by accuracy and precision.
• Accuracy is how close to the true value.
• Precision is how much measurements vary.
• Uncertainty is always present in measurements.

Question 5

How do scientists use models in their research?

Answer 5

• Scientists use mathematical, physical, or visual representations to demonstrate, understand, and predict how scientific phenomena work.
• Examples include weather models and atomic models.

Question 6

What system of measurement is used by scientists to communicate results clearly?

Answer 6

The International System of Measurement

(SI)

The SI system provides a standardized set of units that facilitates accurate data comparison and collaboration across different fields and countries.

Question 7

What are the seven base units of the SI?

Answer 7

• Length: meter (m)
• Mass: kilogram (kg)
• Time: second (s)
• Electrical current: ampere (A)
• Thermodynamic temperature: kelvin (K)
• Amount of substance: mole (mol)
• Luminous intensity: candela (cd)

Question 8

What is the purpose of an experimental group?

Answer 8

A group of subjects upon which a hypothesis is tested.

Question 9

What is the purpose of a control group?

Answer 9

A group which resembles the experimental group in all other ways, but on which the hypothesis is not tested.

In some clinical trials control groups are given a placebo.

Question 10

What does order refer to in science?

Answer 10

The idea that there are certain commonalities and relationships that allow us to understand, statistically quantify, and predict the behavior of objects, organisms, and events in the universe.

Question 11

How can uncertainty in scientific understanding be reduced?

Answer 11

• Through the development of knowledge within related fields and understanding of related factors.
• By making more and better observations.
• By improving explanatory models and experimental methods.

Question 12

What are the main categories of science?

Answer 12

• Earth science
• Space science
• Social science
• Life science
• Physical science

Question 13

List some of the specific sciences within the main categories.

Answer 13

• Biology
• Chemistry
• Physics
• Geology
• Astronomy
• Sociology
• Psychology
• Mathematics
• Logic

Question 14

What does the assumption of consistency in the natural world imply for science?

Answer 14

If something like gravity is measured one day, it should be consistent the next day unless there is a rational explanation for any difference.

Question 15

Why is the scientific method important?

Answer 15

It allows scientists to systematically collect and analyze data, ensuring that their findings are reliable and reproducible.

Question 16

What is the significance of Galileo’s contributions to science?

Answer 16

His use of the scientific method laid the foundation for modern scientific inquiry.

His experiments with inclined planes and telescopic observations revolutionized science.

Question 17

What is the difference between accuracy and precision in scientific measurements?

Answer 17

• Accuracy refers to how close a measurement is to the true value.
• Precision refers to the consistency of measurements, or how much they vary when repeated.

Question 18

Why is no measurement in science ever perfect?

Answer 18

All measurements have some level of uncertainty.

Question 19

Why is understanding uncertainty important in science?

Answer 19

It helps scientists analyze data statistically and determine how likely their ideas are true.

Question 20

What does controlling variables in an experiment help determine?

Answer 20

How a single variable affects the result.

Question 21

Why is science considered a method of study?

Answer 21

It seeks to explain the world by analyzing the structure and behavior of the physical world.

Question 22

Why is the scientific approach to measurement and statistics common across all sciences?

Answer 22

It ensures that data collection and analysis are consistent and reliable.

Question 23

How do scientific models help in practical applications?

Answer 23

They allow for predictions and problem-solving in real-world situations.

Example: Weather models predict climate changes.

Question 24

What is the significance of the scientific revolution?

Answer 24

It fundamentally changed our understanding of the world and led to modern technological advancements.

Question 25

How does science differ from other ways of understanding the world?

Answer 25

It relies on empirical evidence and the scientific method.

Question 26

Why is replication important in science?

Answer 26

It ensures that results are reliable and not due to random chance.

Question 27

What is an example of controlling variables in an experiment?

Answer 27

Testing the effect of light on plant growth by keeping all other factors constant (e.g species of plant, temperature of room, etc), except the amount of light.

Question 28

What role does **statistical analysis** play in science?

Answer 28

It helps determine the significance and reliability of data.

Question 29

Why is it important for scientific ideas to be **falsifiable**?

Answer 29

This allows for scientific ideas to be tested and potentially disproven, which is key to scientific progress.

Question 30

What does it mean for a scientific theory to be **robust**?

Answer 30

It is supported by a large body of evidence and withstands rigorous testing.

Question 31

What is the relationship between **science** and **technology**?

Answer 31

* Scientific discoveries often lead to new technologies, which in turn can lead to further scientific discoveries. * For example, the understanding of electricity led to the invention of many electronic devices.

Question 32

What is the importance of **peer review** in science?

Answer 32

It ensures that scientific research is evaluated and validated by other experts in the field. This ensures reliability and credibility of scientific findings.

Question 33

How do scientists ensure the **reliability** of their data?

Answer 33

By repeating experiments and using precise measurement techniques.

Question 34

What does it mean for scientific data to be **reproducible**?

Answer 34

Other scientists can perform the same experiment and obtain similar results. ## Footnote It is a cornerstone of scientific reliability.

Question 35

Why is **flexibility** considered a strength in science?

Answer 35

Because science is always open to new data and being contradicted, allowing for continuous improvement and refinement of scientific ideas.