Study sets, textbooks, questions
Upgrade to remove ads
H-Chemistry Chap. 1 & 2
Terms in this set (19)
What is Chemistry?
the science that deals with the materials of the universe and the changes that these materials undergo
True or False? When steel in a car rusts, it is an example of chemical change.
True or False? When eggs, flour, sugar, and baking powder are mixed, it is an example of chemical change.
False. It is a chemical change when it is baked afterwards
What is it in scientific terms to 'recognize the problem and state it clearly?'
Making an observation
What is it in scientific terms to 'propose possible solutions/explanations to the problem for the observation?'
Formulating a hypothesis
What is it in scientific terms to 'decide which of the solutions is the best or decide whether the explanation proposed is reasonable? (to do this, we search our memory for any relevant info or we seek new info)
Performing an experiment
What are 2 types of observations that can be made?
Quantitative and qualitative
Give an example of a QUALITATIVE observation.
The sky is blue
Give an example of a QUANTITATIVE observation.
Water boils at 100 degrees C
Once we have a set of hypotheses that agrees with our various observations, we assemble them into a theory that is often called a ___________.
A _____________ is a set of tested hypotheses that gives an overall explanation of some part of nature
A(n) __________________ is something that is witnessed and can be recorded.
A theory is a(n) ___________________________, a possible explanation of WHY nature behaves in a particular way.
True or False? Theories can change overtime as more information becomes available.
What is a natural law?
Generally observed behavior that is put into a statement
The observation that the total mass of materials is not affected by a chemical change in those materials is called the ________________________________.
Law of Conservation of Mass
True or False? A law is an explanation of behavior.
False. A law is a SUMMARY of observed (measurable) behavior.
True or False? A theory is an explanation of behavior.
A __________ tells us what happens; a __________ (model) is our attempt to explain why it happens
Sets with similar terms
Chemistry - Chapter 1 Test Review
science test 10/22
Other sets by this creator
H-Human Anatomy/Physiology Root Words
Session 45 Vocabulary
Session 44 Vocabulary
AP Psychology Unit 11 Vocabulary