Science Vocabulary
Terms
undefined, object
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- Lens
- a piece of clear material that bends light rays passing through it
- Physical Properties
- properties that can be observed by the senses without changing the substance
- Complete Metamorphosis
- a four-step process including a change in an organism's body as it grows. (egg, larva, pupa, adult)
- Freezing/Melting Point
- the temperature at which a substance transitions from a solid to a liquid
- Density
- the concentration of matter in an object
- Fossils
- remains of once living organisms that have been preserved
- Germinate
- the sprouting of seeds
- Bacteria
- tiny living cells that "fix" nitrogen in the soil
- Decay
- the slow, natural breaking down of plant and animal matter
- Adaptation
- a characteristic an organism develops to aide in survival
- Cycle
- a series of events that repeats
- Greenhouse Effect
- process by which the Earth's atmosphere absorbs heat
- Liquid
- anything that has a definite volume but no definite shape
- Freezing
- changing from a liquid to a solid
- Matter
- anything that has mass and takes up space
- Nitrogen Cycle
- the cycle in which nitrogen gas is changed into forms of nitrogen that plants can use
- Fish
- vertebrates that live their entire life in water
- Volume
- the amount of space in an object
- Direct Development
- a kind of growth where organisms keep the same body features as they grow larger
- Photosynthesis
- the process by which plants make their own food
- Mixture
- a combination of substances that can be easily separated into its own parts
- Instinct
- a behavior that an organism inherits
- Consumer
- an organism in a community that must eat to get the energy it needs
- Electromagnet
- a magnet formed by the flow of an electric current
- Decomposer
- consumer that breaks down the tissues of dead organisms (bacteria, mushrooms, vulture)
- Evaporation
- changing from a liquid to a gas
- Conductor
- any material that allows heat or electricity to pass through it
- Solid
- anything that has a definite volume and shape
- Food Chain
- the ways in which the organisms in an ecosystem interact with one another according to what they eat
- Solution
- a combination of substances that cannot be easily separated
- Recycling
- the process of taking a resource from a product and making it into a new item
- Weight
- the pull of gravity on an object
- Reflection
- light that bounces off an object
- Ecosystem
- a community and its physical environment together
- Solubility
- the ability to dissolve
- Respiration
- the process that releases energy; Inhale oxygen exhale carbon dioxide
- Boiling Point
- the temperature at which a substance boils
- Boiling
- when heat is applied to change from liquid to a gas
- Condensation
- changing from a gas to a liquid
- Melting
- changing from a solid to a liquid
- Variable
- something that changes in an experiment and affects the results of the experiment (only 1 can be changed)
- Learned Behavior
- a behavior that an animal learns from its parents
- Community
- all the populations of organisms living together in an environment
- Niche
- the role each population has in its habitat
- Mass
- the amount of matter in an object
- Producer
- an organism that makes its own food (plant)
- Habitat
- a place in an ecosystem where a population lives
- System
- a group of objects working together
- Inherited Trait
- a characteristic that is passed from parent to offspring
- Symbiosis
- a long-term relationship between different kinds of organisms
- Incomplete Metamorphosis
- a three-step process including a change in an organism's body as it grows (egg, nymph, adult)
- Population
- all the individuals of the same kind living in the same environment
- Electric Circuit
- any path along which electrons can flow
- Gas
- anything that has no definite volume or shape
- Insulator
- any material that does not allow heat or electricity to pass through
- Biome
- a region of the world that is defined by its climate and the unique plants and animals that live there
- Fungi
- living things that look like plants but cannot make their own food: mushrooms
- Refraction
- the bending of light rays
- Individual
- a single organism
- Fossil Fuel
- a fuel formed from the remains of once-living organisms