Ecosystems
A behavior that occurs without being learned or taught.
instinctual
Which tool is used to measure the mass of an object?
scale
Name an example of a renewable energy source.
solar, wind, hydropower, geothermal, or biomass
How long does it take for the Earth to complete one orbit around the sun?
365 days or 1 year
What is a closed circuit?
A complete and unbroken path that allows electricity to flow.
A behavior that requires experience and memory.
learned
What gas do plants absorb from the atmosphere?
carbon dioxide
Why are fossil fuels considered non-renewable resources?
They take millions of years to form, meaning they cannot be replaced within a human lifetime.
What is a constellation?
A group of stars that form a pattern in the sky.
What are the five main forms of energy (M.E.L.T.S.)?
Mechanical, Electrical, Light, Thermal, and Sound.
Are earthworms decomposers?
yes
Can you name the boiling point of water?
100 degrees Celsius or 212 degrees Fahrenheit
What is the difference between compaction and cementation?
Compaction is when sediment layers are pressed together by weight, while cementation is when minerals glue the sediments together.
The path one object takes around another.
orbit
What happens if a circuit is "open"?
Electricity cannot flow because there is a break in the path (e.g., a switch is off).
What do arrows in a food web show?
flow of energy from one organism to another
What are animals that eat dead or decaying matter called?
scavengers
buried plant matter (peat) in swampy environments is subjected to intense heat and pressure
Explain the apparent motion of the Sun across Earth's sky.
caused by Earth’s west-to-east rotation
Christmas lights are examples of what type of circuit?
parallel circuit
If all plants in an ecosystem die, how does it affect the food chain?
The ecosystem loses its primary energy source, leading to the collapse of the food web, as all energy flows from producers.
What instrument is used to see very small objects?
microscope
weathering (breaking down rock), erosion (transporting particles), deposition (settling in layers), compaction (squeezing by weight), and cementation (gluing together)
What type of celestial body is the moon?
natural satellite
What type of energy is stored in food?
chemical energy