Post on 25-Dec-2015
Chapter 1The Nature of Science
Section 1: Science and Scientists
Vocabulary
● scienceo knowledge gained about the natural world by
investigation● hypothesis
o a testable idea or explanation that leads to scientific investigation
Start with a Question
● Asking is the 1st step to gathering information
● places to look = o your neighborhoodo the environmento space
Investigation
● scientific progress is only made by asking meaning questions and conducting experiments
● Research = be sure to use reliable sources
Investigation
● observation = looking ato be precise
same time / same location● experimentation
o starts with hypothesis● experimentation relies on
observation, and observation relies on research
Applying the Answer
● science saves lives o better/safer technology
● science saves resourceso more efficient processes
● science protects the environment
Scientists Everywhere
● Meteorologisto weather
● Ecologisto behavior of living things
Section 2: Scientific Methods
Vocabulary
● scientific methodso the ways in which scientists answer questions and
solve problems● observation
o use of the senses to gather information
Vocabulary
● hypothesiso testable idea
● datao information acquired through observation or
experimentation
Scientific methods
● 6 basic steps o ask a questiono form a hypothesiso test the hypothesiso analyze the resultso draw a conclusiono communicate results
Asking a Questions
● look around your world● observation time
o use appropriate tools !o observe at multiple times during an
investigation
Form a Hypothesis
● Gotta be testable● make a prediction before the test
Test the hypothesis
● controlled experimento control group vs experimental group
control group ● factors (variables) are kept the same● those factors called → controlled parameters
experimental group● only one factor changes
o variable parameter
Analyze the Results
● collect data● organize into tables/graphs● compare from REPEATED tests● data must be reproducible
Draw Conclusions
● do the results support the hypothesiso if yes, can you reproduceo if no, ask new questions
Communicate Results
● gotta let others knowo write a papero publish on a websiteo send to a newspaper
Section 3: Safety in Science
Vocabulary
● first aido medical treatment for someone who has been hurt
or sick
Keeping Yourself Safe
● Avoid Accidentso be aware o pay attention
● Report Accidentso Accidents are bound to happen
Elements of Safety
● Understand Safety Symbols● Follow the safety symbols● Follow directions● Be Neat● Use Safety Equipment● Clean up
Responding to Accidents
● know where the safety/clean up equipment is located
● tell your teacher● don’t touch dangerous stuff
o broken glasso spilt chemicals