Study

Final Review

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  • The educated guess that you make about your scientific question in an experiment.
    Hypothesis
  • Name an energy source that doesn’t require steam to generate electricity.
    Wave, hydroelectric, tidal, wind, or solar
  • What electrical component transforms electrical energy into kinetic energy?
    Motor
  • Which part of the atom is positively charged?
    Proton
  • Energy that comes from sources that can be quickly replenished naturally are called?
    Renewable
  • Which part of the atom has zero charge?
    Neutron
  • Identify two properties of air.
    has mass, creates pressure, takes up space, affected by heat, affected by altitude, compressible,
  • List two adaptations that enable birds to fly.
    Strong chest muscles. feathers, hollow bones, streamline shape, different wing shapes
  • The characteristics that enable an organism to survive in its habitat
    adaptations
  • The law that states "For every action there is an equal and opposite reaction" is which Law?
    Newton's Third Law
  • A substance that can flow, like liquids and gases. Ex. Air
    Fluid
  • The variable that is measured in an experiment.
    Dependent
  • The force that pushes an aircraft upward.
    Lift
  • When an organism blends in with the surroundings, making the organism hard to see is called?
    Camouflage
  • When natural places where plants and animals live are destroyed or changed. This can make it hard for animals and plants to survive. For example, cutting down forests to build houses or roads is called?
    Habitat loss
  • When an organisms uses colors to look like a more dangerous version of their kind it is called?
    Mimicry
  • Describe how water pollution has an impact on biodiversity.
    Dirty water, chemicals, plastic can all cause a decrease in a species population, endangering them, making them leave an area, decreasing biodiversity.
  • A neutral solid object is rubbed with wool and the object becomes positively charged. Describe what is happening.
    Electrons are transferred from the object onto the wool.
  • Which part of the atom is negatively charged?
    Electron
  • What is an adaptation that enables an organism to live in the forest?
    Green color, brown color, any predatory adaptation, any prey adaptation
  • What is an adaptation that enables an organism to live in the arctic?
    Thick fur, blubber, white fur, wide paws...
  • What energy source does not require a turbine and generator to produce electricity?
    Solar
  • The variables that must be kept the same an experiment.
    Controlled
  • The idea that lift is created by pressure differences is which principle?
    Bernoulli's Principle
  • True or false? Like charges attract.
    False
  • What electrical component is used to open and close a circuit?
    Switch
  • Charges that can be collected and remain in one place is called?
    Static electricity
  • The force that moves an aircraft forward, usually produced by engines or propellers.
    Thrust
  • The variable that is changed in an experiment?
    Independent
  • Draw a parallel circuit with a battery, a bulb, a buzzer and a switch, that controls both components.
  • The force that slows down an aircraft as it moves through the air, caused by air resistance.
    Drag
  • The variety of animal and plant life in any environment. It can refer to a small area, like a pond, or the entire Earth. It is important because it helps ecosystems stay balanced and provides resources like food and medicine.
    Biodiversity
  • The force of gravity pulling an aircraft down toward the Earth.
    Weight
  • Using natural resources, like animals, plants, and minerals, too much and too quickly, so they become scarce or even disappear is called?
    Overexploitation