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first semester voc
7th grade science first semester voc
| Term | Definition |
|---|---|
| gravitropism | the growth response of plants to gravity |
| positive phototropism | when plants bend towards the light |
| positive gravitropism | when plant grow in the direction gravity pulls it |
| thigmotropism | a plant's growth response to touch is called |
| solar tracking | when flowers are a tracked to the sun |
| tropism | a growth response of a plant toward or away from something in its environment |
| phototropism | the growth response of plant to light |
| producer / autotroph | make their food/energy, using sunlight, carbon dioxide, and water. |
| consumer/ heterotroph | eats others organisms as a source of food/energy |
| detritovore | feeds on dead matter ex. shrimp and vultures |
| decomposer | feeds on dead matter and recyles it back into the ecosystem ex. fungi |
| biodiversity | All of the different living organisms within an ecosytem |
| omnivore | eats both plants and animals, ex. racoon |
| biotic | living |
| abiotic | non living |
| immigration | organisms are coming into the environment |
| emmigration | organisms are leaving the environment |
| community | all living organims within an ecosystem |
| ecosytem | all living organims and non living factors within the environment |
| population | a group on individuals from the same species livng together |
| niche | the physical and biological area where an organism lives . It's "click" or "spot" |
| carrying capacity | the maximum population size an environment can sustain. |
| non-native species | a species that is not orginal to the environment, disrupts the food web. |
| photosynthesis | process by which plants use sunlight water and carbon dioxide to create a oxygen and glucose (sugar) and water vapor |
| carbon dioxde | gas is used by plants during photosynthesis |
| leaf | in which part of the plant where most of the photosynthesis process takes place |
| oxygen | which gas is released by plants during photosynthsis |
| chlorophyll | the chemical pigment found in the chloroplast that makes the leaves of plants green in color |
| transpiration | the moment of water vapor out of a plant and into the air |
| sunlight | radiant energy that starts the process of photosynthesis turning radiant energy into chemical energy |
| phototropism | the way a plant grows or moves in response of light [bends near light] |
| Tornado | a mobile destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system |
| Hurricane | a hurricane is an intense tropical storm with powerful winds and heavy rain. |
| Flood | a great flowing or overflowing of water, especially over land not usually submerged. |
| Earthquake | a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earths crust or volcanic action. |
| Tsunami | a long high sea wave caused by an earthquake, submarine landslide, or other event. |
| Biological weathering | breaking down of rocks by activities of living organisms. (digging or roots.) |
| Catastrophic event | a violent, usually destructive natural occurrence |
| Chemical Weathering | breaking down of rocks by chemical processes by changes. |
| Deposition | a process weathered and eroded materials are deposited by wind or water or ice. |
| Erosion | weathered material is moved by wind, water, and ice. |
| Physical (mechanical) Weathering | breaking rocks (physical pressure grinding shattering) |
| Weathering | process which exposed rock are broken down. May be caused by wind water physical chemical and biological. |
| Drainage Divide | A geographical barrier, such as a ridge, hill, or mountain, separating one watershed land area from another |
| Surface Water | Water from precipitation that drains into a gully that !ows into a stream, which in turn !ows into a river, lake, reservoir, estuary, wetland, or the ocean |
| Groundwater | Water that collects in cracks and pores in underground soil and rock layers |
| Water Table | The top of the saturation zone, below which water "lls all open spaces between the rock |
| Zone of Aeration | The upper portion of soil and rock that can be temporarily "lled with water as the water enters the ground, but then moves deeper |
| Saturation Zone | Below the water table where all spaces not "lled with solid material "ll with water |
| Aquifer | A layer of permeable rock that allows water to !ow through |
| Permeable Rock | Allows water movement to !ow through the material, the opposite of impermeable |
| Point-Source Water Pollution | A single identi"able and localized source of water pollution, such as wastewater discharge into a stream |
| Non-Point Source Water Pollution | Pollutants introduced into surface or ground water that are without a speci"c location source, such as water !owing over a lawn that has been fertilized and into a drain |
| Sediments | Earth material that is broken down by processes of weathering, can be eroded and deposited by the agents of water, wind, ice, and gravity |
| Ecoregion | A relatively large area that is characterized by distinctive plant and animal communities, climate, and ecological features |
| Compost Bin | A container for piles of biomass to promote decomposition and decay resulting in a recyclable fertilizer |
| Carbon Cycle | The movement of carbon from the nonliving environment into living things and back |
| Nitrogen Cycle | The movement of nitrogen from the nonliving environment into living things and back |
| Water Cycle | The movement of water through the atmosphere, the ground, bodies of water, and living things; the continuous movement of water above, on, and below Earth’s surface |
| Sustainable | Capable of being maintained at a steady level without exhausting natural resources or causing severe ecological damage |
| Climax Community | A relatively stable state of succession, or the end product of succession |
| Zero-gravity | The complete absence of gravity that can only be found in space |
| Vacuum | A volume of space mostly empty of matter, such as oxygen to breathe! |
| Spacesuit | A complex system of garments that allow astronauts to work safely outside their spacecraft |
| Water | A requirement for life as we know it; exists on Earth as a solid, liquid, and gas |
| Homeostasis | The tendency of an organism or cell to maintain a balanced state so as to maintain health and functioning |
| Stimulus | An action or condition that provokes a response |
| Response | Any behavior of a living organism that results from an external or internal stimulus |
| Thermal Energy | Energy that is generated by the organism when work is done and used by the organism to maintain a constant temperature |
| Mechanical Energy | Energy used by the organism to do work |
| Transformation of Energy | A change in the form of energy in a system |
| Chemical Energy | Energy stored within the bonds between atoms and molecules and is obtained from a chemical reaction or change ex.. glucose |
| Work | The use of force to move an object through a distance W=Fd |
| Mass | The amount of matter in an object or substance |
| Distance | Measurement from one place to another |
| Friction | Force that opposes the sliding motion between two touching surfaces |
| Simple Machines | Devices that reduce the amount of force needed, but do not reduce the amount of work being done |
| Inclined Plane (Ramp) | A simple machine that is sloping at a particular angle |
| Force | A push or pull that changes the motion or position of an object |
| Net Force | The sum of all the forces acting on an object |
| Motion | A change in an object’s position, direction, or location |
| Turgor Pressure | Pressure of water molecules against the cell wall that allows plants to stand up straight |
| Succession | Natural, gradual changes in the types of species that live in an area; can be primary or secondary |
| Primary Succession | Begins in a place without any soil (Sides of volcanoes, Landslides, Flooding) |
| PIONEER SPECIES | the first species to arrive |
| Secondary Succession | Begins in a place that already has soil and was once the home of living organisms. Occurs faster and has different pioneer species than primary succession Example: after forest fires |
Created by:
KallyEvans
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