Shed Some Light On the Subject
What direction does light travel?
straight until it strikes something
This shows how energy flows from one organism to another. The energy starts at the sun.
food chain
The spinning of the Earth on its axis. It takes 24 hours to do this once.
rotation
What are four examples of alternative energy sources?
Biofuel, wind, solar, geothermal,and hydroelectric energy
This is the boiling point of water. Remember the units!
100 degrees Celsius
What is the bouncing of light off of a surface such as a mirror or other shiny surface?
reflection
An organism that makes it own food through the process of photosynthesis
producer
This is one trip around the sun. The closer the planet the faster the trip. The Earth takes 365 days to do this.
revolution
a substance that is the result of heat and pressure over millions of years
fossil fuels
This is the freezing point of water. Remember the units!
0 degrees Celsius
What is the bending of light when it travels from one medium to another?
refraction
An organism that has to eat or consume food to get energy
consumer
This provides the energy for the water cycle to keep going and going.
sun
This fossil fuel was formed from the remains of ancient swamp plants (peat) that were buried by layers of sediment and exposed to lots of heat and pressure over millions of years.
Coal
How you would separate a mixture of sand and iron filings.
use a magnet to collect the iron filings
What are some objects that refract light? (Name at least two)
lenses, glass of water, camera, microscope, telescope
The living and non-living parts of an organisms environment.
ecosystem
Earth's natural satellite
the moon
Name three causes of WED
water, wind, ice
a mixture that is the same throughout is called _______.
a solution
What is a prism?
a clear triangular object that bends light and breaks it into its colors.
The cycle involving both plants and animals where there is an exchange of gases that are necessary for both organisms to survive.
carbon-dioxide oxygen cycle
This is the center of our solar system.
Sun
This is the average weather of an area over a long period of time.
climate
This will allow heat or electricity to pass through it easily.
a conductor