Science- 3rd Grading

• give th major component of the food chain

  • Soil
  • producers
  • consumers
  • decomposers
• Sun


  it powers the light and hear that keeps the earth habitable for life
• Tertiary consumers - trophic level 4


  They get their energy from meat, making them generally carnivores
• Quaternary consumers - trophic level five

  • Apex predators also known as quaternary consumers are the top of the food chains
• Food web


  all food chains in a single eco-system
• Food chain


  it shows who eats who
• food web


  collection of all food chains within an ecosystem
• Energy pyramid

  
• the prefix "bio" means life. The prefix "a" means no or not
• Ecosystem

  
• the theme interconnectedness or interdependence means that every animal is dependent on each other for survival
• Biotic factors

  
• Abiotic factors

  
• Example of biotic factors

  Producers, consumers, decomposers
• examples of Abiotic factors

  Water, sunlight, atmosphere
• Natural selection


  characteristics that make an individual better suited to its environment may eventually become common in that species
• Natural selection results in adaption
• niche


  role of an organism in its habitat, or how it makes its living
• Symbiosis


  Any relationship of 2 or more species living and interacting with each other
• Mutualism


  benefits both
• Commensalism 


  benefits one, other is unaffected
• Parasitism


  Benefits one, but is harmful to the other
• Predation

  
• Competition

  
• Intraspecific competition

  
• Intrespecific competition

  
• Cooperation

  
• Water is essential factor of survival, a definite percentage of water is used by almost all living things; which is present in their body to stay healthy and to survive longer.
• Temperature there is a certain maximum and minimum range of temperature (hotness and coldness) needed for the adaptation of both plants and animals.
• Light - sun being the main source of energy for organism, plays an important part in the life of the most plants as it used in the process of making food calls photosythnthesis.
• Atmospheric Pressure - organism generally survive in a particular range of atmospheric pressure. Some may find it difficult to breathe in a place with high and low air pressure.
• Soil - organic and inorganic matter, combined together with varying water content establishes the retention capacity of the soil, its fertility and also the presence of the minerals in it.
• Force is a physical concept that describes the interaction between two objects that can change the motion of one or both of them.
• Force is push or pull that can cause an object to move, stop or change direction.
• Newton (N) is the unit for measuring force.
• Sir Isaac Newton - the famous physicist.
• F - force

  m - mass of an object

  a - acceleration
• Motion is the action of changing location or position.
• Kinetic - study of motion without regards to the forces or energies that may be involved.
• Friction - is a force that happens when two surfaces rub against each other. Its like sticky force that can make things harder to move smoothly.