Natural Hazards
What causes widespread injury, death, and damage?
natural disasters
Name a non-renewable resource
coal, natural gas, petroleum
anything that has mass or take up space?
matter
H20 is which of the following?
made of atoms, a molecule, an element, a compound, a substance
-atoms
-molecule
-compound
-substance
(its NOT an element)
Which organization method would show very similar properties? The groups or the periods??
Groups = 18 columns
Periods = 7 rows
the groups have very similar properties
State a WEATHER related hazard?
tornado, thunderstorm, floods, hurricane
The place where an organism lives is: _________
habitat
The measure of the amount of space something takes up
volume
Which CANNOT be separated into simpler substances by chemical means?
salt, gold, wax, water
gold!
When sugar "disappears" in water, what type of change occurred?
PHYSICAL! Dissolving is a physical change (nothing new was made; both sugar and water are still there)
State a geological hazard.
volcano, tsunami, earthquake, landslide
Name a renewable resource (one that can be replaced as we use it)
solar, wind, hydroelectric, geothermal
a substance that cannot be separated or broken down into simpler substances
element
Which is a physical property?
density, flammability, ability to tarnish, formation of CO2
density
If you were finding the volume of a rock using water displacement. Calculate its volume if it initial volume was 10 mL and the final volume was 20 mL.
20 - 10 = 10 mL
what is "the weather conditions in an area over a long period of time"?
Which type of renewable resources are considered inexhaustible ?
solar and wind
a pure substance made of 2 or more different types of atoms
compounds
Which is NOT a physical property of most metals?
conductivity, melting point, dissolvability, flammability, density
State the chemical symbol for the following elements:
Chlorine:
Sodium:
Lead:
Chlorine: Cl
Sodium: Na
Lead: Pb
The warming of the surface of the earth due to gases in the atmosphere is ______________
greenhouse effect
Which natural hazard is responsible for most of our natural resources?
volcanoes (rocks, minerals, fertile soil)
the chart that arranges all known elements in order by atomic number
periodic table of elements
Glucose's chemical formula is:
C6H12O6
How many atoms exist in total?
24 atoms!
6 + 12 + 6 = 24
Calculate the density of a block of metal if its measurements are:
mass = 6 g
volume = 2 cm3
the density = m/v
6/3 = 2 g/cm3