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a period of time characterized by specific weather patterns and by the length of day and night
What is a season
a force of attraction between all matter
What is gravity
something that happens in a regular and repeated way
What is a pattern
a change that does not affect the chemical structure of a substance.
What is physical change
All knowledge gained from experiments
What is science.
A structure formed around a hole in Earth's crust that releases magma
What is a volcano
a kind of weathering that occurs when chemical reactions change change the composition of rocks, rearranging the atoms or molecules into new substances with different properties
What is chemical weathering
a category of rock formed in chemical reactions where one type of rock is changed by pressure or heat into a new type of rock with different properties
What is metamorphic rock
mixed mineral matter that makes up the surface of the Earth and other terrestrial objects
What is rocks
the breakdown of rock into smaller pieces from exposure to wind,water, changes in temperature,and/or biological forces: there are 2 kinds..mechanical and chemicl
What is weathering
the transport of sediment by wind,water or gravity
What is erosion
a dark shape created when an object block light
What is a shadow
the passing on of traits from parents to children
What is heredity
the process of water falling back to Earth in the form of rain,snow, sleet or hail
What is precipitation
a physical or behavioral characteristic of an organism
What is a trait.
any form of precipitation that has high levels of nitric and sulfuric acid
What is acid rain
the average weather over a span of 30 years
What is climate
the weighing of human needs against the needs of the environment to create a sustainable way for humans to live off of natural resources.
What is conservation
the series of developmental stages an organism passes through on its way from birth to death.
What is a life cycle
the smallest unit of life
What is a cell
a network of paths energy travels as one organism eats another
What is a food web
the breakdown of organic waste materials into usable nutrients
What is decomposition
A community of different organisms that depend on interacting with each other and their physical environment for survival
What is an ecosystem
the use of the suns energy to convert carbon dioxide and water into a kid of sugar called glucose, which the plant uses for energy
What is photosynthesis
drifting slabs of solid rock, called plates, that make up the Earth's surface.
What are tectonic plates