z Physical Science LiveLesson Unit 1 Continued
zPhysical Science LiveLesson
Unit 1 Continued
z Best Ways to Present Data & Analysis
Data Tables will be used to organize all data in your High
School Science Courses
You will need to be able to read them to decide what
information is being presented.
z
Parts of a Whole
Changes over time between two
variables
Compare between groups
zBar Graph-show month to month comparison of each city
Best for Total Annual Rainfall
Line graph –shows difference over the year
Independent Variable increasesDependent Variable increases
Independent Variable increasesDependent Variable decreasesOr opposite (i – dec , d – inc)
k = 1Or a given
constant
Directly Proportional
Force = mass x acceleration
Force needed to lift a couch?
Which has greater mass?
Which will take greater force? Mass ↑ Force ↑
Indirectly Proportional
Cookie logic
# you eat = # left for later
….even if your lab is your kitchen
Dress Appropriately :
No open toed shoes
Tie long hair back
ALWAYS wear eye
protection
More Conversion Help / Practice
On the quiz you were asked to show an equivalent value
12cm is equal to ?
Use the units in the answer choices to see which is correct.
A) .012 km B) m C) 1,000 dm
Remember1km = 100,000
1m = 100cm1dm = 10cm
B is correct
12/100 = .12 m
Which Factor is
Correct??
200 kL to mL
1kL = ? mL
6 decimal places
10x10x10x10x10x10
= 1,000,000 times
larger than mL
We know there are
more mL than kL so
we multiply!
Put your answer in Scientific Notation
= 1.36 x 108 mm
Google doesn’t always work…
Google used 273.15 instead of our textbook/course
where you only need to use 273.
Don’t forget our equations and please do the calculations.
K = 0°C + 273
°C = K - 273
(3.2 x 104) - (2.89 x 102) =
(3.2 x 104) - (2.89 x 102) =
=32,000 – 289=31,711
= 3.2 x 104
Change to same exponent by moving decimal(320.0 x 102) - (2.89 x 102) Subtract or Add numbers
320.0 -2.89 = 317.1Now correct exponent issue but keep original exponent!
3.2 x 102 +2 more
= 3.2 x 104
(3.2 x 104) x (2.89 x 102) =
(3.2 x 104) x (2.89 x 102) =
32,000 x 289=9,248,000= 9.2 x 106
Multiply the decimals3.2 x 2.89 = 9.248
Add the exponents 4+2 = 6= 9.2 x 106
* When dividing the numerator – denominator exponent value
What type of Scientists would be studying a bacteria found on the Mars Rover during it’s time on Mars?
Hint – Two Major Branches
Life Scientists and Earth/Space Scientists
Ask QuestionsDevelop Hypothesis
Test Hypothesis
Analyze Data
Make Conclusions
Revise Hypothesis and Retest
Make Observations
Following the
Scientific Method Place
These in Correct Order
Ask Questions
Develop Hypothesis
Test Hypothesis
Analyze Data
Make Conclusions
Revise Hypothesis and Retest
Make Observations
Define a Scientific Law and a Scientific Theory. How are they different?
• Scientific law - describes a pattern found in nature
• Scientific theory - an explanation for a set of observations or experimental results
• Laws describes the patterns while theories explain the patterns.
• Theories DO NOT BECOME LAWS
Remember the Equations and complete the calcs with Sig Figs
K = #°C + 273 °C = K – 273
°C = (#°F − 32) × 5/9 °F = (#°C × 9/5) + 32
115 °F to °C
115 °F to K
-999K to °F
= 115 -32 (5/9)= 83 (5/9)= 415/946.1 °C
= 115 -32 (5/9)= 46.1 °C
46.1 + 273= 319 K
= -999 – 273= -1272°C
= -1272°C x (9/5) + 32= (-11,448 / 5) + 32
= -2,289.6 +32= -2,260 °F