Chemistry
This type of change occurs when a new substance is formed.
What is a chemical change?
The main goal of federal laws like the Clean Water Act and Safe Drinking Water Act is this.
What is restoring and maintaining the health of the nation's water?
What is nuclear, and classify it as renewable or nonrenewable?
What is energy that comes from splitting atoms of uranium, and is nonrenewable?
These are traits that help an organism survive and reproduce, making them more common in future generations.
What are adaptations?
When a species slowly changes over many generations due to natural selection, this occurs.
What is evolution?
In an atom, where are protons, neutrons, and electrons located?
What are protons and neutrons are found in the nucleus, electrons are found orbiting around the nucleus in energy levels?
When water has a high level of suspended particles, making it cloudy or murky, this is being measured.
What is high turbidity?
What is biomass, and classify it as renewable or nonrenewable?
What is energy that comes from organic matter and is renewable?
This process explains how organisms with helpful traits survive and reproduce more than those without them.
What is natural selection?
This record of preserved remains or traces of organisms provides evidence of how species have changed over time.
What is the fossil record?
Name the three subatomic particles and identify the electric charge of each.
What is proton (positive), neutron (neutral), electron (negative)?
pH is a measure of this, and these pH levels indicate unhealthy water.
What is a measure of acidity or alkalinity, and a low pH and High pH can indicate unhealthy water?
This principle states that in undisturbed rock layers, the oldest layers are found at the bottom.
What is the Law of Superposition?
Differences in traits among individuals in a population are called this, and they are essential for natural selection to occur.
What is genetic variation?
When different species have similar bone structures in their limbs, it suggests they share this.
What is a common ancestor?
This number on the Periodic Table tells you how many protons an element has.
What is the atomic number?
What are nitrates, and how do they affect the health of water systems?
What are nutrients, and excessive amounts of nitrates will make the water unhealthy?
When an ancient fossil and a modern organism share similar anatomical structures, what does this suggest?
What is a common ancestor?
Organisms that survive and reproduce pass on these to their offspring, increasing the frequency of beneficial traits over time.
What are genes or inherited traits?
These structures have similar anatomy but different functions and provide evidence of evolutionary relationships.
What are homologous structures?
This forms when two liquids are mixed together and a solid forms.
What is a precipitate? (this is a sign of a CHEMICAL CHANGE)
How does temperature affect dissolved oxygen?
What is cooler water holds more dissolved oxygen?
During this geologic era major groups of organisms transition from marine (living in water) environments to terrestrial (living on land) environments.
What is the Paleozoic Era?
A population of rabbits has variation in fur color. When a snowy winter comes, which rabbits are more likely to survive and reproduce, and why?
The white rabbits, because their fur camouflages them from predators.
These structures perform similar functions in different species but do not share a common evolutionary origin.
What are analogous structures?