https://www.pinterest.com/meccavail/cute-pictures/
{
Scientific Notation
❧https://www.youtube.com/watch?v=kHGpopA7o
3c
Theory V Law
❧a scientific law is the description
of an observed phenomenon. It
doesn't explain why the
phenomenon exists or what
causes it. The explanation of the
phenomenon is called a scientific
theory.
http://www.livescience.com/21457-what-is-a-law-in-science-definition-of-scientific-law.html
Organizing and analyzing data
❧Graphs: are scientific or mathematical models to show relationships in
data
❧Bar:
http://intermath.coe.uga.edu/dictnary/descript.asp?termI
D=50
Organizing and analyzing data
❧Graphs: are scientific or mathematical models to show relationships in
data
❧Line :
https://wms5mathwiki.wikispaces.com/Line+Graph+8?responseToken=fb9b55c3201047715e9c24
b4fb933651
Organizing and analyzing data
❧When setting up your graphs your Manipulated variable goes on the
horizontal or “X” axis
❧Your Responding variable goes on the “Y” axis.
Responding
Variable
❧Responding Variable: variable that changes in response to another
❧Manipulated Variable: variable that causes a change in another
Manipulated Variable
Inversely or directly proportional
❧Directly Proportional:
❧Three important properties of this function are:
1. The function is linear.
2. It has a positive slope.
3. The only intercept is the origin
{
Directly
Proportional
Linear (straight line)
Through the origin
Indirectly
Proportional
{
Parabola (curved line)
Through the origin
Compare the two graphs
Study Guide
Multiple Choice
Testable Questions
Non
Non
Testable
Non
Testable
Testable
Scientific Method
Observation: Eric is cute
Research: Eric is single
Question: How can I get Eric’s attention so we can get to know
each other better?
Hypothesis: If I start getting to know Eric then we may start dating
because we have so much in common.
Procedures:
1. Talk to him in Adams’ Science class
2. Find out what he likes and compare to mine
3. Make a study date, since Adams is giving us a dang test
4. Wear his favorite perfume ….
❧Data analysis: We have a lot in common and seem to like each other
❧Conclusion: C, E, R
❧Share Results: Change my FB status to dating
M
Density
D
V
g/mL
g/mL
g/mL
0.89
0.91
0.8
1.24
0.92
0.81
1.25
0.79
1.21
What do all the calculated quantities for Liquid 1 have in common? Liquid 2? Liquid
3?
When mass and volume increase in proportion what happens to density?
32
30
Liquid 3
Liquid 1
28
Liquid 2
26
Volume (mL)
24
22
20
18
16
14
12
10
8
6
4
2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Mass (g)
Density
Direct . It’s a straight line that goes through the origin
Liquid
2
Liquid
1
Liquid
3
5,200
0.000965
0.085
26
7.8 x 10 4
5.3 x 10 -4
2.5 x 10 2
2.687 x 10 3
27,000
645.2
0.877
.0064
1.6 x 10 1
4.3 x 10 -3
8.75 x 10 -1
1.2654 x 10 -2