Science
Way of learning abt natural world based on evidence & logic
Scientific law
Statement describing observed phenomenon
Scientific theory
Broad explanation supported with evidence on pehonmeneon
Chemistry
Study of composition of matter & changes matter undergoes
Physical chemistry
Study physical properties of matter, creates new materials
Organic chemistry
Synthesize polymers studies carbon-based materials
Inorganic chemistry
study of non carbon based materials
Analytical chemistry
study composition of matter
Biochemistry
synthesizes proteins study biological processes
Inductive reasoning
Process of drawing general conclusion w/ lots of evidence
Scientific method
Logical, systematic, approach to find solution of sci. prob.
Observation
Any info gathered with senses
Hypothesis
Educated guess that can be tested with observations
Experiment
Controllable sci. Study of specific variables
Independent variable
Variable changed by researcher
Dependent variable
Variable researcher predicts will change if independent variable is changed
Explain the difference between a Scientific Theory and a Scientific Law.
A scientific law states what always happens and a theory describes why it happens
List the steps of the Scientific Method.
- Make observation or ask a question
- Research if needed
- Make hypothesis (if…then…because)
- design/conduct a controlled experiment
- collect/analyze data
- conclude/report results
Be able to identify the INDEPENDENT (manipulated) and DEPENDENT (responding) variable in a given investigation. Provide an example here:
Experiment: Seeing what fertilizer best affects the growth of a plant
I.V. : Fertilizer
D.V. : Plant growth
(make sure u can think of ur own example)
List the main areas of Chemistry: (hint: there’s 5)
Physical- Study physical properties of matter, creates new materials
Organic- Synthesize polymers studies carbon-based materials
Inorganic- study of non carbon based materials
Biochemistry- synthesizes proteins study biological processes
Analytical- study composition of matter
Be able to list at least 5 LAB SAFETY RULES.
Wear protective clothing when working with chemicals
Always tie loose hair
Never directly smell a chemical, waft them instead
Wash your hands after touching lab materials
Never play around during experiments
Never directly look into a flask but look at it from the side
Always read labels on chemicals before using
Always wear safety goggles to protect your eyes
(there are 8, choose ur pick)
