Definitions
an original model on which later versions are patterned
prototype
The amount of days it takes for the Earth to travel around the Sun.
What is 365 days?
windstorm occurring over land with funnel-shaped cloud extending toward the ground
tornado
These organisms produce their own food.
What are producers?
This is the primary source of energy for all food chains.
What is the Sun?
how humans change the natural world
technology
An herbivore's food.
What are plants?
vibrations in the earth's crust from the moving of tectonic plates
earthquake
The part of a plant that holds it up and has tubes that carry water, minerals, and nutrients through the plant.
stem
These organisms obtain their energy by eating other organisms.
What are consumers?
A test that does not give any advantage to the conditions or objects being tested.
fair test
In this process, heat energy transforms a liquid into a gas.
What is evaporation?
Watery clay soil slides down a mountain
landslide
During this process, plants convert sunlight into food.
What is Photosynthesis?
What is a decomposer?
a real world limit on a solution
constraint
Fizzing, a color change or a temperature change all signal this type of change.
What is a chemical change?
a slide of large masses of snow and ice and mud down a mountain
avalanche
the attractive, coloured part of a plant where the seeds grow
flower
A trait that helps an organism survive and reproduce
adaptation
The desirable features of a solution.
criteria
An insectivore's food.
What are bugs and insects?
An active volcano in the Cascade Range in southwestern Washington that suddenly erupted in 1980.
Mount Saint Helens
the process when male and female reproductive parts join together
fertilization
body part that performs a function
organ