chapt 1 slides
TRANSCRIPT
-
8/4/2019 Chapt 1 Slides
1/10
Chemistry: An Introduction
QuickTime and adecompressor
are needed to see this picture.
-
8/4/2019 Chapt 1 Slides
2/10
Chemistry in Everyday Life
Automotive industry
Cosmetics
Pharmaceuticals
Cleaning products
Clothing
Food
Fireworks
Nature
QuickTime and adecompressor
are needed to see this picture.
QuickTime adecompres
are needed to se
QuickTime an
decompressare needed to see
QuickTime and adecompressor
are needed to see this picture.
-
8/4/2019 Chapt 1 Slides
3/10
What is Chemistry?
Chemistry can be defined as the science that deals
with the materials of the universe and the changes
that these materials undergo
QuickTime and a
decompressorare needed to see this picture.
QuickTime and a
decompressorare needed to see this picture.
-
8/4/2019 Chapt 1 Slides
4/10
Chemical Reactions
Burning gasoline in your car produces water, carbon monoxide, carbon
dioxide, and other substances
Baking a cake at homeproduces carbon dioxide - the same gas as
gasoline!!
Digesting your food also produces ??????
-
8/4/2019 Chapt 1 Slides
5/10
Science!
Science is a framework for gaining andorganizing knowledge.
Science is a plan of action a procedure
for processing and understanding certaintypes of information.
Scientists are always challenging our current
beliefs about science, asking questions, andexperimenting to gain new knowledge.
Therefore the scientific method is needed.
-
8/4/2019 Chapt 1 Slides
6/10
How Do Scientists Think?
Solving problems Observation - stated information gathered about
a known problem
Hypothesis - propose a possible solution to theproblem based on the observations
Ex. Allergic reactionWhat are some observations you might make? What hypothesis might you derive from the
observation?
-
8/4/2019 Chapt 1 Slides
7/10
The Scientific Method
1. State the problem - write it down
2. Make observationsand collect data
3. Formulate a hypothesis
4. Perform experiments - test the hypothesis
5. Conclusion - was your hypothesis correct? Whyor why not? Is the problem solved? - No - Repeatsteps 1-5.
*Quiz
-
8/4/2019 Chapt 1 Slides
8/10
Hypothesis vs. Theory
Hypothesis - defined as an educated guess about aproblem
Theory - a set of tested hypotheses that agree withthe observations giving an overall explanation ofsome part of nature. Model
Can a theory change over time?
*Quiz
-
8/4/2019 Chapt 1 Slides
9/10
Natural Law
Natural Law - defined as a theory about the naturalworld that has been proven many times to be truein many different systems.
*Quiz
Ex. Law of Conservation of MassMass can neither be created or destroyed - onlytransformed
Therefore it can be stated that mass is always conserved
-
8/4/2019 Chapt 1 Slides
10/10
Learning Chemistry
Learn the vocabulary (memorization)
Develop critical thinking skills What is known or given about the problem?
What is the unknown? What information can I gather to lead me to the answer?
(ie. observations/data)
Patience
You wont get everything on the first try! Trust yourself and your learning style
What helps you learn things the easiest?
Use these tools to guide you in your study