Interactions and Ecosystems
The study of the relationship between living organisms and their environment
What is ecology?
Name some example of how we use thermal energy.
Electricity, heating, cooking, transportation.
Explain what a structure and a load is.
Structure: Any object with a definite size and shape which serves a purpose or function.
Load: The weight carried or supported by a structure.
These are the three main types of rocks.
What are igneous, sedimentary, and metamorphic rocks?
Name the seven major food crops.
Potatoes, Barley, Wheat, Rice, Corn, Cassava, Sorghum.
Any trait that helps an organism survive and reproduce in its environment. (Provide an example)
What is an Adaptation? (Camouflage, Hibernation, fur)
0 Kelvin
What is the temperature for absolute zero?
Define what friction is and define the three to create friction.
Friction: The force that results when the surface of one object moves against the surface of another object.
Fasteners, Interlocking Pieces, Mass.
What is the difference between direct and indirect observations?
Direct observations: Requires scientists to go to a place or take samples from a place themselves.
Indirect Observations: Allows scientists to make inferences about a place without actually being there nor having taken samples from a place themselves.
Name the three plant structures.
Leaves, Stem, Roots.
Interaction between organisms of different species that live in close proximity to each other that lasts for a long period of time. Define the three types.
What is symbiosis?
Commensalism: One organism benefits while the other organism is unaffected.
Mutualism: Both organisms benefit from the relationship.
Parasitism: One organism benefits while the other organism is harmed.
Particles that are far apart start to move together.
What is condensation?
What is the equation to compare weight and mass?
Weight=Mass x Gravity
What is continental drift and what was the ancient supercontinent called?
Theory of Continental Drift: States that today’s continents were once all attached as an ancient supercontinent named Pangea.
What is selective breeding and how does it work?
Selective Breeding: When humans choose plants with the best traits and encourage those plants to reproduce.
Farmers save the seeds from the plants with the best traits. Then they plant those seeds. Take the pollen from one plant and pollinate another plant that also has good traits.
These are the four types of ecosystem monitoring.
What is physical monitoring, environmental monitoring, chemical monitoring, and biological monitoring?
The transfer of thermal energy from one particle to another in a solid object through direct contact or collisions.
What is conduction?
Name the types internal and external forces.
External: Wind, Gravity, Earthquakes, People
Internal: Compression, Tension, Bending.
How is amber formed and is it considered a fossil?
Amber: Insects that get stuck in tree sap that hardens overtime preserving their body.
Amber is not considered a fossil because fossils are a type of stone or rock formation.
What is parent material and what kind of things turn it into soil?
Parent Material: The original rock that gets broken down over time to form the soil.
Things like frost wedging, glaciers, or roots breaking turn the rock into soil.
Plant or animal that scientists use to check the health of an ecosystem. Give one example.
What are bioindicator species? (Sharks, grizzlies, frogs, salamanders)
Compare renewable and non-renewable resources.
Renewable: Resources that are replaced over time to provide a constant source of energy. (Trees, wind, solar, water, thermal)
Non-renewable: Resources that cannot be easily replaced and will eventually run out. (Coal, oil, gas, nuclear energy)
What are the different causes of failure? Explain each.
Shear Failure: When a structure fails because one section slides in the opposite direction past another section along a weak point.
Buckle Failure: When a structure fails due to bending caused by compression and tension.
Torsion Failure: When a structure fails due to torsion force.
Snapping Failure: When a structure fails due to tension force.
What percentage of plutonium is in a 160 million year old fossil?
25%
Name the three essential nutrients for fertilizer and explain what each means.
Nitrogen: Used by plants for stem and leaf growth.
Phosphorus: Used by plants for root growth.
Potassium: Used by plants for flower and fruit development.