Chemistry and Science
A branch of science that studies matter
What is Chemistry?
Ice melts to water and then vaporizes
What is a Physical Change?
0.0000000000001
What is 1 significant figure?
How many meters are in one kilometer?
1000 meters or 103 meters
An amount of matter contained in a standard unit of volume and independent of the quantity of the substance examined.
What is Density?
Something that has mass and takes up space
What is Matter?
Gasoline combusts in a combustion engine
What is a Chemical Reaction?
4000
What is one significant figure?
What are the ratios for kilometers and meters?
103 meters / 1 km OR 1 km / 103 meters
What is mass/volume?
A consistency of nature.
What is a law?
The smell of burnt cookies lingers throughout the house after someone left the oven on.
What is a chemical change?
12540.
What are five significant figures?
What number does the prefix micro represent?
0.000001 OR 10-6
The downward force of gravity acting on the mass of an object
What is weight?
A rational approach used to discover regularities of nature that involves the process of experimentation and forming a hypothesis
What is the Scientific Method?
Cooking an egg
What is a chemical change?
100.0000
What are seven significant figures?
Convert 12 milliliters to liters
0.012 liters or 1.2*10-2 liters
Correlation/Conversion Factors(ratios) that can be used to express measurements in different units in problem solving using units.
What is dimensional analysis?
Explanation using a model of the essential aspects of a phenomena that cannot be physically seen.
What is a theory?
Graphite turns into diamond
What is a Physical Change?
10000001
What are eight significant figures?
Convert 24.5 Megagrams to nanograms.
2.45*1016 nanograms or 24500000000000000 nanograms
How many inches are in 24.5 centimeters?
9.65 inches