Final Exam Flashcards
What is Earth’s major external source of energy?
The sun
What are 3 consequences for living things if our atmosphere did not exist?
1) Burned exposed skin
2) Extreme variation in temperature
3) Freeze at night
Earth’s major external source of energy is the sun, which is powered by ______ ______
Nuclear Fusion
The sun’s energy is used by 1)______, which drives the 2)_______, and 3)_____ the atmosphere.
1) _growing plants_____ 2)_hydrologic cycle______
3) warms
draw the order of the electromagnetic spectrum
Raging Martians Invaded Venus Using X-ray Guns
ionizing only happens on which side of the spectrum?
High side
How is infrared radiation absorbed into the atmosphere?
infrared radiation is absorbed by Co2
What are the 4 properties of matter?
c
What is the difference between a physical property vs a chemical property?
c
What are the 6 signs that a chemical change has occurred ?
If there is a change in color, scent, flame is present, heat, precipitate , and bubbles are present.
which properties of metals do metalloids have?
Luster and Conductivity
what are the 4 properties of metals
malleability, conductivity, luster, and ductility
Properties of metalloids and metals shared
Conductivity, and luster
properties of metals and nonmetals comparison
Metals Nonmetals
Strong Weak
good conductors of Not good conductors of heat and electricity
heat and electricity
good luster, have high density not lustrous
Mendeleev was the father of the periodic table and arranged the elements in __________order
Atomic mass
The largest and smallest region of the periodic table
Metals
metalloids
What are the differences between ores , rocks, and minerals
- a rock is a bunch of minerals
- a mineral is composed of substances/ chemicals
- an ore is made up of a rock like substance containing metals.
A measure of how much matter is in an object
is the definition of Density, Mass, ductility or weight?
Mass
the weight of an object is usually taken to be the force on the object due to gravity is density, mass, ductility or weight?
Weight
What is density?
Density is a characteristic property of a substance.
The density of a substance is the relationship between the mass of the substance and how much space it takes up (volume).
The mass of atoms, their size, and how they are arranged determine the density of a substance.
Density equals the mass of the substance divided by its volume; D = m/v.
Objects with the same volume but different mass have different densities.
