What is a combination of two or more pure substances that can be physically separated?
Mixture
100
What is the approximate cost to make a 12-oz plastic bottle?
0.08 dollars (8 cents)
100
Name two materials that have a brilliant luster.
Aluminum, Copper, Iron
100
How much money is one gold bar worth?
1.5 million dollars
200
How would you measure the volume of an irregularly shaped stone?
Water Displacement
200
What is the amount of matter an object has. Bonus (+100): what is the metric unit?
Mass.
Bonus: Grams
200
Which material requires crude oil to make?
Plastic
200
Name the material that is less dense that water.
Wood
200
From what country do most of the rare earth minerals come from?
China
300
What is the formula for Density?
Density = Mass / Volume
300
What is the amount of space an object takes up. Bonus (+100): what is the metric unit?
Volume.
Bonus: Centimeters cubed
300
Which material is the most recyclable (can be recycled again and again without losing material)?
Glass
300
Name three materials that conduct electricity.
Aluminum, Carbon, Copper, Iron.
300
What two metals is bronze made out of? Bonus (+100): why do bell-makers prefer bronze over other pure metals?
Copper and Tin.
Bonus: For its quality of sound, for its strength.
400
What is the density of a plastic where the volume = 9 cm^3 and mass = 3 grams? Bonus: will this plastic sink or float in water?
Density = 0.33 grams/centimeters cubed.
The plastic will float in water.
400
What is 'when a liquid can dissolve into another liquid evenly to form a solution?'
Miscible.
400
Which material is the most recycled by Americans (by percent recycled)?
Aluminum
400
Name two materials that are harder than glass.
Tile, Granite, Limestone, Iron.
400
How many unique elements are known to mankind?
118
500
What is the metric unit for Density?
Density = grams / centimeters cubed
500
What is 'traits of a substance that you find by seeing if it reacts in certain ways with other chemicals.' Bonus (+100): give an example of a test of this type that you have done.
Chemical properties
500
Which material produces the most waste per ton that is made? Bonus (+100): about how much solid waste it produced per ton?
Aluminum.
Bonus: 2000-4000 pounds of waste per ton.
500
Name three materials that did not react with acid.