Science Skills, Scientific Method & Intro to Biology

*Copy the notes and answer the questions.* If the note has a * you do not have to write it, it is instructions

Scientific Measuring

SI Units (System International) – A way the world can share data

Length – MeterMass/Weight – GramVolume – Liter

(mL=cm3=cc)(cm3=Length x width x height)

Tools for measuring in SI Units

What do the following tools measure?Triple beam balance (aka scale) __________Graduated Cylinder ____________Meter Stick ___________

KKilo-

1000 of the Base Unit

Base UnitMeter

Liter Gram1 of the base unit

*Draw the chart and fill in all of the missing info (Abbreviation, Prefix & How many of the base unit)

Metric Conversions

*Question: 50 km = ______ cm

*Use the conversion box you just drew.1. Start with you finger in the box of your first unit (50 km)2. Move your finger to the unit you are converting to.3. Count the spaces and Note the direction in which you moved (Remember to count the base unit

too!)4. Move the decimal point the same number of spaces & in the same direction as you moved your

finger.

*Answer: 50 km = 5 000 000 cm

Try these on your own:1m = ________km6g = ________ mg41 cm = ______ mm600 cL= _____ hL

Graphing Data

Graphs should always include Axis Labels, Units, Title, Key (if needed) and appropriately plotted points.

*Answer the

question using the

graph

Scientific Method

How a scientist answers questions.

1.Question2.Hypothesis3.Experiment4.Conclusion

* the next four slides are for reading only, you already have written them

1.*Question – Development of a Questiona.Is your question safely testable?b.Do you have all the materials necessary to

answer it?c.What is your Independent Variable? (Cause)d.What are your Dependant Variables?

(Measureable Effect)e.What Variables are Controled? (The Same for

each set up)

2. *Hypothesis – What is your prediction of the results?

a.If… Then statement (If I don’t turn in my work, then I will receive a zero on the assignment.)

b.Is it testable?

3. Experiment – Exact directions on how to replicate your procedure.

a.Include all information about controlling variables!

b.Set up graphs and data tables to record results.

c.Perform experiment & Record Results

4. Results & Conclusion – A written expression of the conclusions you can draw from your experiment.

a.Paragraph formb.Start by summarizing the experiment. (We tested

_____ in this experiment by …)c.Accept or Reject your hypothesis ( I have to

________ my hypothesis because… )d.Use recorded data to support your conclusions.e.Tell what could have been done differently for

more reliable results.

Ch 1 - Intro to BiologySection 1Biology – Bio=life, ology= study of

What do Biologists do?• Study Interactions of living things• Study diversity (differences) in living things• Study interactions of the environment•Answer questions

Characteristics of Living things1.Organized – have orderly structure2.Reproduce

a.Species is a group of living things that can produce fertile offspring

3.Grow4.Respond to stimuli5.Adapt

*Section 2 is scientific method (which we have already covered)

*Section 3 – is SI Units (which we already covered), but you need the following definitions to add to it

Types of informationQualitative – Tells an observable quality of a thing (example a red shirt)Quantitative – Tells numerical data (quantity) of something (example 15 shirts)