Physical Science Week 2



  • Accuracy
  • Precision
  • Scientific method
  • Hypothesis
  • Experiment
  • Data
  • Conclusion
  • Theory
  • Law
  • Controlled experiment
  • Control group
  • Experimental group
  • Anecdotal data
  • Numerical data
  • Pure science
  • Applied science
  • Technology
  • Physical science
  • Chemistry
  • Physics
  • HTML
  • Bar Graph
  • Pie Graph
  • Graph
  • Independent variable
  • Dependent variable
  • Scale
  • Extrapolate
  • Interpolate
  • Rubric


Introduction to
Physical Science Class

click to find the answer to today's question

What is science?


Science is a never-ending search for truth. Truth is based on a set of facts and our understanding of those facts. A good scientist must be ready to accept new facts as they are discovered and modify what is "true" in light of these facts. Even though science in school is usually taught in classes that are limited to a certain area, such as chemistry or physics, science is science, no matter what topic is involved. Science is being done whenever the scientific methodlink to a local webpage is used.

All students of science should have an understanding of the basic science history to a local webpage

Pure science is the gathering of information that adds to the body of human knowledge. Pure science is not directly concerned with the practical use and application of the information. Applied science, also known as technology, is the practical use of scientific information.

Physical science is the first year science class at Desert Vista High School. Students are expected to be familiar with computers and some of their applications when they enter this class. During the school year, those skills will be polished and used to produce several research projects.

Chemistry and physics are the "physical sciences".

Chemistry, the study of the structure and properties of matter. (1st semester)
Physics, the study of the relationships between matter and energy. (2nd semester)

Commonly used software:

As a student at Desert Vista High School, you have an opportunity to use the latest information technology available. The following software is used most often to report research information in Physical Science Class.

·         Microsoft PowerPoint: This program is used to display text and graphics to a group. It can be used in support of an oral presentation or as a stand-alone, automatically run program. PowerPoint can also be used to add text or artwork to graphics files.

PowerPoint is a "presentation graphics" program. It is used to visually provide information to a group of people - not just one person sitting in front of a computer. Color combinations and font size must make the slides easily read from a distance.

Refer to this grade rubric for more details.

·         Microsoft Excel: This program is used to produce spreadsheets of data that can then be converted into graphs.
Once the data is correctly typed into the Excel spreadsheet, changing the way the data is displayed in graph form will not alter the data. There are many types of displays to choose from.

·         WebPage Publishing: There are several software packages available to publish webpages.
Student webpages in DVHS science classes are made for the sole purpose of providing information. Any graphics used must support your information without making the page slow to load. There are differences between informative webpages and those that are meant entertain. These differences are the things you will be asked to learn this year.

·         Graphical analysis: This program is used to produce graphs and analyze data.

The Scientific Method

click to find the answer to today's question

Why is science research done?

Science is a search for truth.

The scientific method is an organized way to figure something out.
Any question or problem can be solved using the scientific method

Homework 2.1 Thickness of Aluminum foil Lab 
Answer the Analyze and Conclude questions 1-4 on page27.

Read pages 1-6 in the Physical Science Textbook.


Analyze and conclude Page 27


Day 3

click to find the answer to today's question

What is the independent variable in an experiment?


Calculators:link to a local webpage

A scientific calculator will make your life easier this year in physical science class. Can you find the calculator program on your computer?

Graphing:link to a local webpage

All scientific experiments will produce some results that require careful observation to understand. Many times, these observations will be in the form of measurements called "data". To interpret the results of an experiment, it is necessary to be able to evaluate this data. Although there are several ways to display data, making a graph is one way to help make data visual.

There are several type of graphs. Each type works best with a particular type of information.

Whether making or interpreting graphs, it is important to understand how graphs are constructed.

Bar Graphs & Pie Charts

click to find the answer to today's question

Bar graphs are best suited to what type of information?


Bar graphs are best suited to counted or qualitative information.  Although you can see trends in the bars you cannot calculate slope.  link to an Internet Website


   Homework 2.3 Graphing:   link to a local webpage
This assignment must be turned in by the beginning of class tomorrow to receive credit.

Day 4


Using Technology

click to find the answer to today's question

What is applied science?

Graphing on computer.


HW 2.4 graphing handout given in class link to a local webpage



Day 5

Precision vs. Accuracy

click to find the answer to today's question

How is precision different than accuracy?

Precision vs. Accuracy lab Page 18 of text. 

HW  answer questions 1-3 on page 18













Science is a search for truth.
The methods of science can be used to solve any problem, not just those related to science subjects in school.










Applied science is the practical use of scientific information.
Today's technology is an example of finding practical applications for knowledge gained from pure science.










Lack of pre-lab preparation is the main threat to lab safety.
You cannot be safe and successful doing a science experiment if you haven't researched the problem carefully.










Research is done to gather information to help in forming a hypothesis.
Research is NOT performing an experiment. Research is a search for information. Once you know what is published about your problem you will be able to make an informed hypothesis.










The independent variable in an experiment is controlled by the experimenter.
Anything that affects the results of an experiment is a variable. Successful experiments are designed to eliminate as many "unknown" variables as possible. A perfect experiment will only have two variables, the independent variable and the variable for which you are gathering information.



Penny Lab- Continue Penny lab in class today.  Do not forget to do your research on the composition of the penny.  


Construct your penny lab graph.    Year vs. Mass   

Write your conclusion.  How does the data support or discredit your hypothesis?  Be careful do not draw conclusions about things you have not tested.