Fill in the blank: Chemists help to identify ___________ to prevent __________.
What is pollutants and pollution
100
This is a proposed explanation for an observation
What is hypothesis
100
What are the two steps to solving conceptual problems?
analyze and solve
100
This is a pollutant that has been used in paints and gasoline that is harmful to humans
What is lead
200
This is anything that has mass and occupies space
What is matter
200
The discovery of the structure of DNA led to the development of __________.
What is biotechnology
200
You use your senses to obtain information, this is called making _____________
What is observations
200
What are the three steps to solving numeric problems?
analyze, calculate, and evaluate
200
This is a procedure that is used to test a hypothesis
What is experiement
300
This is research that is directed toward a practical goal or application
What is applied chemistry
300
This view is described as the world of objects that can be seen only under magnification
What is microscopic
300
This is a well-tested explanation for a broad set of observations
What is theory
300
There are 3600 seconds in an hour. How many seconds are there in one day?
86,400 seconds/day
300
Scientists will do this to increase the likelihood of a successful outcome (two words)
What is collaborate and communicate
400
This is the means by which society provides its members with those things needed and desired
What is technology
400
This view is described as the world of objects that are large enough to see with the unaided eye
What is macroscopic
400
This is the variable that is observed during the experiment
What is responding variable/dependent variable
400
On the average, a baseball team wins two out of every three games it plays. How many games will this team lose in a 162-game season?
54 games (1/3 of 162)
400
This is a concise statement that summarizes the results of many observations and experiments. It does not try to explain the relationship is describes.
What is scientific law
500
This material was produced while researching cotton and silk
What is nylon
500
Fill in the blanks: Chemist play an essential role in finding ways to __________ energy, __________ energy, and _______ energy.
What is conserve, produce, and store
500
This is the variable that you change in an experiment
What is manipulated variable/independent variable
500
What do effective problem-solving strategies have in common?
developing a plan and implementing that plan
500
These are the three general reasons to study chemistry
What is explaining the natural world, preparing people for career opportunities, and producing informed citizens