For the first page in your notebook, illustrate what you think science is! Chapter 1- The Nature of Science
Dec 22, 2015
For the first page in your notebook, illustrate what you think science is!
Chapter 1- The Nature of Science
How do we “do” science?Scientific Method
State the problemGather informationForm a hypothesis/state the research question
Variables: dependent, independent Constants and controls
Test the hypothesisAnalyze dataDraw conclusions
Bias-occurs when what the scientist expects changes how the results are viewed.
Complete the flip chart on scientific method in your notebook!
Law vs. Theory –a theory can be used to explain a law!
Theory Law
Explanation of things or events based on knowledge gained from many observations and investigations.
NOT a guess!CAN be modified!Examples: Big
Bang
A statement about what happens in nature that seems to be true all the time.
They do NOT explain why.
Examples: gravity
Measure up!
Precision Accuracy
How closely measurements are to each other and how carefully measurement are made.
Compares a measurement to the real or accepted values.
Measurement-SI UnitsBased on multiples of 10Standard is the kilogram kept in France!Meter is base unit of lengthSecond is base unit for timeKelvin is base unit for temperature
QUIZ! Write the answers in your notebook.A gram is about the size of a (apple, dime,
pineapple)?A meter is about the height of a (door,
counter, seat)?Water freezes at _____C and boils at
_________C.The height of a tall man is about 200 ____.Normal body temperature is ____CThe thickness of a dime is about
________mm
Video Conversion between metric units | Metric system unit conversion | Khan Academy
Dimensional AnalysisA conversion factor is a ratio that is equal
to one and is used to change one unit to another .
Homework!Find your favorite recipe.Convert from English units to metricTurn in both the English recipe and metric
version!
Volume MassVolume-the amount of
space occupied by an objectV=l x w x h1mL = 1 cm(cubed)
Create a density column in your notebook!
Mass- is a measurement of the quantity of matter in an object.
Density- is the mass per unit volume of a materialMeasured in a
derived unit: g/cm(cubed)
TemperatureCelsius
0, 100Body temp is 37Fahrenheit32, 212Body temp is 98.6
The SI unit for temperature is Kelvin (K)
0 is coldest possible temp also known as Absolute Zero. (-273 C!!)
Water boils at 373 K