ESS 1.1 Fossils And Earth's Age
The Earth's age according to scientists.
4.6 billion years old
Who you inherit traits from.
Earth's population in 2050.
9 billion people
The best way to separate a salt-water solution.
Boiling
The two government agencies in charge of testing and approving chemicals.
The FDA and EPA
What the age of Earth is based on.
Fossil Records
What all organisms are constantly working towards.
Survival
A reason human population growth is a problem.
Resources become limited.
The substance being dissolved into a liquid.
Solute.
The difference between synthetic chemicals and natural chemicals.
Synthetic are made by humans; natural are made in nature.
What fossils help us understand.
Earth's past.
The organisms more likely to survive a changing environment.
The ones with the greatest genetic variations.
Differences between developed and developing countries.
Growth rates in developed countries are lower than those in developing countries. Unlike underdeveloped countries, developed countries have better healthcare, technology, higher standard of living, and smaller families. Population in developed countries wows down and becomes stable, whereas population in developing countries continually increases.
The two types of mixtures.
Heterogeneous and Homogeneous.
The risks of using chemicals.
Death, sickness, environmental damage, fires, and explosions.
The longest division of time in the geological time scale.
An Eon.
The process by which the characteristics of a species change over many generations in response to the environment
Things to lesson the future impact of transportation.
Better planning for infrastructure, buses, telecommuting, trains.
Any combination of substances that can be physically separated from one another.
Mixture.
The four types of chemical hazards.
Flammable, corrosive, reactive, and toxic
Eon, Era, Period, Epoch.
The presence of natural differences in traits within a species.
Genetic Variation
Ways humans are damaging the ecosystems.
exploiting and overusing natural resources
Mixture where the substances are so evenly mixed, it’s not possible to see the separate parts.
Solution; salt water, soda.
Ways chemicals benefit society.
Healthcare, agriculture, medicine, and manufacturing