Matter exists on Earth in only these three possible states.
What are gas, solid, and liquid?
100
What are the three ways to measure matter?
Mass, Volume, and Density.
100
The smallest parts of matter that can be broken down no further.
What is an atom?
100
Early in the countries existence gold was discovered in what state?
California.
100
Scientists believe that global warming may help to prevent this earthly event that happens every 12,000 - 15,000 years.
What is the next ice age?
200
Properties that hold true for all matter regardless of sample size.
What are characteristic properties?
200
What is weight?
Force of gravity on the mass of an object.
200
Greek philosopher who believed that everything had a smallest possible piece.
Who is Democritus?
200
What is the density of gold and pyrite?
Gold 19.3 grams per cubic cm Pyrite 5.0 grams per cubic cm.
200
German bookstores will once again begin selling the book Mein Kampf which was authored by this controversial German person.
Who is Adolf Hitler?
300
What are boiling and melting points?
Boiling Point: When liquid turns to gas, Melting point: when solid turns to liquids.
300
How is density measured?
Density relates mass and volume and is measured as mass over volume. Commonly grams per cubic cm.
300
A British schoolteacher who released his atomic theory which he was able to test through “modern science.”
Who is John Dalton?
300
Explain how iron is separated from an ore.
Iron is placed in a blast furnace (heat source) and introduced to a source of carbon (usually coke), carbon reacts with oxygen in the iron ore leaving behind the pure iron.
300
Members from this one of the six kingdoms may be able to live on Mars.
What is a fungi?
400
Explain the difference between physical and chemical changes.
What are physical Changes – Alter the form of the substance but not the identity. Chemical Changes – Substances break apart or combine in order to create an entirely different substance?
400
What three ways can density be measured in water?
Water has a density of 1.0 g/ml higher density will sink, lower will float, similar will fluctuate in the middle.
400
Masses of elements in a compound are always in what with one another.
What is a constant ratio?
400
Explain the process of copper electolysis.
Electric current flows into impure copper ore separating copper from rock. Copper will stick to electrode of pure copper while rock will fall to bottom of solution.
400
Recently a Florida family had this illegal pet seized by cops after secretly keeping it for over 37 years.
What is an alligator?
500
What are the differences between mixtures and pure substances?
A mixture consists of two or more substances that are in the same place but are not chemically bonded. Each substance within the mixture will maintain its separate properties. A pure substance is made up of only one kind of matter and has definite properties.
500
What property is true of all forms of matter?
All matter has volume and takes up space.
500
Describe a scanning tunneling microscope and what it shows us.
Microscope that can see atoms, can't show us how they function.
500
How are most element found in nature and why?
Compounds known as ores because most elements are unstable by themselves.
500
Thursday March 2nd marked the 55 year anniversary of Wilt Chamberlain's record setting game where he scored this many points, an NBA record.