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

Metric PrefixesCopy Mega to nano in your notebook

Converting Metric to Metric

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

GraphsA graph is a visual display of information or

dataLine graph-can show any relationship

where the dependent variable changes due to a change in independent variable.

Bar graph-comparing informationCircle graph-shows how some fixed

quantity is broken down into parts.