Elements, Compounds, and Molecules
Energy Flow
Forces/Work
Human Impact/Environmental Changes
Biodiversity/Biotic/Abiotic
100
Determine if the following example is a Compound or an Element. Na
Element
100
In a food chain, what do the arrows represent?
The path of energy.
100
What is Net Force?
The overall force exerted on an object.
100
Would a drought be considered a short term environmental change or a long term environmental change?
Short Term
100
What is an Abiotic factor?
Something non-living in the environment.
200
Determine if the following example is a compound, a molecule, or both. NaOH
Both
200
What is the difference between a food web and a food chain?
A food web is multiple food chains linked together from the same ecosystem.
200
What is Balanced Force?
Equal forces that do NOT cause a change in an objects motion.
200
Would deforestation be considered a short term or long term environmental change?
Long Term
200
What is a Biotic factor?
A living or once living part of the ecosystem.
300
Determine if the following example is a compound, molecule, or both. O3
Molecule
300
How much energy is passed on from one level to the next in an energy pyramid?
10%
300
What is Unbalance Force?
Unequal forces that cause a change in an object's motion.
300
What is ground water?
Water found beneath earth's surface, usually in aquifers.
300
What is biodiversity?
Different varieties of life within an ecosystem.
400
What is a compound?
Two or more elements bonded together.
400
Put the following organisms in the correct order that you would find them in a food chain. Snake, grass, hawk, mice
grass --> mice --> snake --> hawk
400
What is the formula for finding Work?
Work = Force x Distance
400
What is surface water?
Water found above earth's surface. (lakes, ponds, etc.)
400
Explain the importance of biodiversity.
Allows ecosystems and species to more easily adapt to changes in the environment and provides a variety of food sources.
500
What is an element?
A pure substance that cannot be broken down chemically.
500
Label each level in an energy pyramid in order.
Producer, Primary Consumer (Herbivore), Secondary Consumer, Top Consumer.
500
List the two things that MUST happen in order for work to be done.
1. An object must move a distance. 2. The object must move in the same direction as the force being applied.
500
Define Watershed.
An area of land where all of the water that is under it or drains off of it goes into the same place.
500
Give me 2 examples of potential threats to biodiversity.
Habitat loss, overfishing/hunting, disease, climate fluctuation, pollution.
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