The Nature of
Science
ACT Opener

Keep the opener sheet with you for two
weeks

Write the question and answer it

Which statement is always true for a
compound?




A. It is homogeneous
B. It contains only 1 element
C. Its chemical composition varies
D. It decomposes by physical means
Review
 Growth


Keep trying until you get it
Then keep making it better
 Test


Mindset
your mindset
Which mindset are you?
Which mindset do you want?
Unit 1: The Nature of Science
 “I
Can” statements
 Standards
 That

for the entire unit
is what you will be tested on
Keep in your notebook
Unit Pre-Test
 Answer
 Do

the Pre-Test questions
your best
Similar to Unit test
Notes (keep in binder)
 What

is science?
Observing and knowing the physical world
 Theory-
the most logical explanation of
events that occur in nature
 Law- A theory that has been tested many
times and is accepted as true
Notes
 Scientific
Method- systematic approach
to problem solving

Generally 6 steps (you may have learned 5)
 Stating
a problem
 Gathering information
 Forming a hypothesis
 Performing experiments
 Recording and analyzing data
 Stating a conclusion
Opener
 Make
sure to copy the question and the
answer
 What
is the name given to anything that
takes up space and has mass




A. Compound
B. Matter
C. Mixture
D. Substance
Review
 Standards
 Pre-test
and “I can’s”
Notes
 Scientific
Method- systematic approach
to problem solving

Generally 6 steps (you may have learned 5)
 Stating
a problem
 Gathering information
 Forming a hypothesis
 Performing experiments
 Recording and analyzing data
 Stating a conclusion
Notes
 Can
you think of ways for us to describe
each?
Opener

Copy the question and the answers

When Alex distills Substance X, he obtains 3
different pure liquids with boiling points of
150°C, 250°C, and 350°C. How should Alex
classify Substance X




A. Element
B. Compound
C. Mixture
D. Molecule
Review
 Scientific



Method
Independent Variable?
Dependent Variable?
Control?
Notes
 Variable
a factor being tested
Two types
 Independent
variable- the one you change
 Dependent variable- the one that changes
on its own
 control
any factor that remains the same
Great experiments have lots of controls
Notes
 Hypothesis

Educated guess/proposed solution
What makes a good one?
 Branches


of Physical Science
Chemistry- the study of what substances
are made of and how they change
Physics- the study of forms and energy and
laws of motion
Class example
Scientific Method Practice

Work alone


Work in pairs


10 minutes
10 minutes
Check your answers with another group




5 minutes
Decide on correct answers
Group of four will be graded
Turn in one paper with four members’ names on it
for actual grade
MythBusters Method
 Watch
 Fill
it
this 2 minute clip
out the worksheet that goes along with
 Listen
carefully, they cover information
quickly
Target Check
 On
a piece of paper (to stay in your
binder)



List the steps of the scientific method
Explain each step in your own words
MUST be complete sentences!!!
Homework
 More


practice
Complete the worksheet for homework
Due TOMORROW!!!!!
Opener
 Copy
question and answers
 Which
set contains only physical
properties?




A. Color, taste, ability to rust
B. Boiling point, solubility, viscosity
C. Density, flammability, freezing point
D. melting point, odor, reactivity to light
Review
A
lot of practice with variables and
controls
 Homework
 Change
Turn In
in Schedule
Notes
A
little different way of taking notes today
Practice Problems
 Complete

the practice problems
What you don’t get done in class is
homework
Opener

Copy the question and answers

A chemistry student finds a beaker in the lab
containing a mixture of copper(II) sulfate and
sand. The student adds water to the beaker, and
the solution turns blue. What technique would be
best to separate the blue solution from the sand?




A. Chromatography
B. Distillation
C. Evaporation
D. Filtration
Review
 SI



units
We have to know these
I know it is difficult
Keep working
 Growth
Mindset = “You just don’t know how
to do it… YET”
Study Guide Board
 Each



person...
Think of a topic or vocab word to add to
our board
Write it on the piece of paper
Turn it in
Pre-Test
 Look
 15



at it again
minutes
Correct things
Change things
Add more things
Investigate
 Four

Groups
One paper per group
 List
the steps of the scientific method and
how each apply to your investigationg
 Problem:
Is it a liquid or solid?
Lab!!!
 Fun
with phases or states of matter
 Work
in groups of 4
 Please

remember to keep things clean
Don’t throw stuff down the drains
Opener
 Copy
question and answers
 The
label on a bottle of water indicates
the bottle contains 455 mL of water. How
many liters of water are in the bottle?




A. 0.455
B. 4.55
C. 45,500
D. 455,000
Review
 Study

Guide Board
Feel free to add to it this week
 Pre-Test
 Investigation

Was it solid or liquid?
New Activity
 In
lab groups
 Complete
the activity sheet using the
materials provided
 One
paper for each group
Notes
 Try
something a little different
 Take

notes from another PowerPoint
This will be made available on my website
tonight
Practice Problems
I
will do some with you
 Homework


Whatever you don’t get done in class
Due Tomorrow