I am shiny and conduct electricity and heat well. What am I?
Metal
How would you determine the luster of a mineral?
Shine a light on it and observe how the light reflects off the object.
To find the density of a substance, what formula would you use?
D = m/v
The elements argon, krypton, and xenon are all non-metals. What property would these elements have in common?
A. Good conductor of thermal energy
B. Poor conductor of electricity
C. Shiny, lustrous surface
D. Soft and malleable
B. Poor conductor of electricity
What is the difference between a physical and a chemical change?
In a physical change, no new substances are formed.
Metal
A student was given two minerals of the same color. What physical property could be tested to help the student determine the identification of the two minerals?
A. Relative size
B. Mass in grams
C. Volume in mL
D. Streak Color
D. Streak Color
What is the density of a substance with a volume of 100mL and a mass of 25g?
0.25g/mL
All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT —
A. texture
B. conductivity
C. luster
D. malleability
A. texture
What is Ms. White's favorite color?
Blue
A student hit me with a hammer and I shattered into many pieces. I also don't conduct heat. What am I?
Nonmetal
Refer to the Mohs Hardness Scale. What minerals would a mineral with a hardness of 7 be able to scratch?
Talc, Gypsum, Calcite, Fluorite, Apatite, Orthoclase Feldspar
A student performs an investigation to determine the density of an unknown sample. The student drops the 10g sample into a graduated cylinder with 30 mL of water. The water rises to 35 mL. Based on the densities of the substances below, what is the most likely identity of the sample?
-Aluminum: 2 g/mL
-Bismuth: 9 g/mL
-Indium: 7 g/mL
-Magnesium: 1 g/mL
Aluminum
Which of the following would help a student classify an unknown element as a metal, metalloid, or non-metal?
A. Measure its conductivity
B. Determine its density
C. Find its melting point
D. Observe its color
A. Measure its conductivity
How is a metamorphic rock formed?
By placing another rock under extreme heat and pressure.
I am a dull insulator and you wouldn't use me to make wires for your electronics. What am I?
Nonmetal
A teacher asks students to test for a mineral’s hardness. How would the students conduct this test?
Scratch the unknown mineral against known minerals or other materials
A cube has a mass of 504g and it measures 4cm on each side. What is the density of the cube?
7.875g/cm3
What is the property that describes how well a substance can be stretched into a wire?
Ductility
What month is Ms. White's birthday in?
July
I am an unknown substance that is yellow, somewhat shiny, and can conduct heat reasonably well. What am I?
Metalloid
What are two reasons why color alone is not the best property to use in the identification of minerals?
1. A single type of mineral may be found in multiple colors
2. Two or more minerals might have the same color
The density of water is 1g/cm3. A substance will float if its density is less than that of water. Which of the following substances will float?
Substance 4
Which of the following correctly lists the three main groups of elements from greatest conductivity to least conductivity?
A. Nonmetals -> Metals -> Metalloids
B. Metals -> Nonmetals -> Metalloids
C. Metalloids -> Metals -> Nonmetals
D. Metals -> Metalloids -> Nonmetals
D. Metals -> Metalloids -> Nonmetals
What does a eukaryotic cell have that a prokaryotic cell does not have?
Nucleus