chemistry
what does c02 stand for
carbon dioxide
what are some examples of fossils?
dinosaurs, shark teeth, etc
what is a pandemic?
when a disease spreads from country to country or throughout the world
what is turbidity?
the amount of dirt in water
what is a column (vertical) on the periodic table?
the vertical columns are called families or groups, all members of a family of elements have the same number of valence electrons, and similar chemical properties.
what is paleontology?
the science/study of fossils of animals and plants
what is an epidemic?
a spread of a disease in a community, smaller spread than pandemic
What is ph?
the measurement of acidity in water
what is a row on a periodic table?
rows are known as periods or series, they are arranged on the basis of similar chemical and physical properties
How do we know the age of fossils?
the layer of rocks they are in
How can you prevent disease?
what is the ideal temperature for water?
50
what does h20 stand for
water
how do fossils form?
sediment covers the organism, the sediment protects the remains from other animals
How can disease spread?
Travel, public spaces, person-to-person contact, etc
how much turbidity is safe for water?
turbidity shoulder not exceed 5 NTU
how many stripes are in the US flag?
13
what is the (letter) symbol for iron
FE
why do we study fossils?
Fossils give us a useful insight into the history of life on Earth.
what are antibiotics for?
to fight infections cause by bacteria
How much dissolved oxygen should be in water?
above 6.5-8 mg/L