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Cumulative Science Review 5th grade

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  • support microorganisms are harmful
    microorganisms live in soil, water, air
    bacteria and fungi are decomposers
    algae release oxygen into the air as waste
    mosquitoes can transmit protozoa that cause malaria
  • which statement supports the fact that some microorganisms are helpful?
    algae live in rivers, lakes, and oceans
    farmers spray crops with chemicals to prevent fungi growth
    many diseases are caused by viruses
    people use bacteria to make cheese
  • An organism that breaks down wastes and dead organisms
    Decomposer
  • how do you know that volcanos are constructive processes?
    plants and animals die from the eruption
    hot gases escape from volcanoes
    the top of the volcano blows off during the eruption
    lava flows out and piles up
  • which of these actions can be reversed?
    rusting
    bending
    tarnishing
    burning
  • The change from a gas to a liquid
    Condensation
  • A form of matter that has a definite shape and volume
    Solid
  • A measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object.
    Temperature
  • A measure of the amount of matter in an object
    Mass
  • overflow of water on land that is usually dry
    flood
  • What is the BEST comparison of static electricity and electric current?
    static is build up of electrons, current is flow
    static has negative charges, current positive charge
    static uses open circuits, current uses closed circuits
    static runs through wires, current jumps across wires
  • which is not true?
    animal and plant cells have organelles
    an animal cell cannot be seen without a microscope
    the cell membrane of animal cells is thicker than plant cell
    a plant cell cannot be seen without a microscope
  • An instrument used to measure temperature
    Thermometer
  • Energy stored in the nucleus of an atom
    Nuclear Energy
  • what is true about levees?
    they help control flooding along rivers
    they prevent erosion of river banks
    they allow deposition on floodplains
    they limit coastal flooding
  • An organism that can make its own food.
    Producer
  • melted rock below the earth's surface
    magma
  • why are electric cords coated with plastic?
    because plastic blocks the flow of electric current
    because plastic is flexible
    because plastic allows electric current to flow
    because plastic is cheap
  • How can you make an electromagnet stronger?
    increase the electric current flowing through the wire
    wrap the wire around the iron core fewer times
    replace the copper wire with plastic wire
    replace the iron core with a copper core
  • what helps prevent the flooding of roads during heavy rainstorms?
    storm drain
    seismograph
    sea wall
    groin
  • What causes a liquid to change to a gas
    a decrease in temperature
    an increase in temperature
  • why are electric cords coated with plastic?
    because plastic blocks the flow of electric current
    because plastic is flexible
    because plastic is cheap
    because plastic allows electric current to flow
  • a chef chops up several ingredients to make a salad
    she makes a solution
    she makes a mixture
    she makes a new substance
    she changes the state of matter
  • how can you control erosion at the beach?
    storm drains
    beach nourishment
    groins
    levees
  • why are electric cords coated with plastic?
    because plastic is flexible
    because plastic is cheap
    because plastic blocks the flow of electric current
    because plastic allows electric current to flow
  • what part of a cell controls what enters and exits the cell?
    nucleus
    chlorophyll
    cytoplasm
    cell membrane
  • Hill of sand deposited by wind
    dune
  • Which statement about vertebrates is true?
    most animals are vertebrates
    vertebrates have skeletons
    vertebrates live only on land
    vertebrates do not have backbones
  • which event causes a mountain to form over time?
    a volcano erupts
    a river floods
    a glacier melts
    a river slows down at its mouth
  • Processes by which rock, sand, and soil are broken down and carried away (i.e. weathering, glaciation)
    Erosion
  • A state of matter with no definite shape or volume
    Gas
  • he change of a liquid to a gas
    Evaporation
  • which is a conductor
    glass jar
    plastic cup
    iron nail
    wooden log
  • what organelle is the brain of the cell
    cell wall
    nucleus
    cytoplasm
    cell mebrane
  • Tiny, one celled organisms found in water that break down organic matter
    Bacteria
  • how do seeds and spores compare?
    both occur in flowering plants
    only seeds grow into new plants
    neither grows in soil
    both are parts for reproduction
  • which is a wolf's instinct?
    hiding in a den
    barking
    following its mother
    playing with other wolves
  • during which change do water particles move faster and farther apart?
    dissolving`
    evaporation
    melting
    freezing
  • which statement describes how deposition builds up the surface of a floodplain?
    a river flows over its banks and slows down
    lava flows from a volcano and piles up
    a river slows down as it flows into the ocean
    rainwater seeps into the ground and freezes
  • why are electric cords coated with plastic?
    because plastic allows electric current to flow
    because plastic is flexible
    because plastic is cheap
    because plastic blocks the flow of electric current
  • A state of matter that has a definite volume but no definite shape.
    Liquid
  • When weathered rock is picked up and moved
    erosion
  • An organism that obtains energy by feeding on other organisms
    Consumer
  • which part converts electrical energy into another form?
    wire
    load
    battery
    switch
  • Anything that has mass and takes up space
    Matter
  • Energy caused by the movement of electrons.
    Electrical Energy
  • Process by which organisms use energy from sunlight to make their own food
    Photosynthesis
  • which is weathering
    wind blows sand from dune to dune
    tree roots breaking rocks into smaller pieces
    ocean waves dropping sand on a beach
    a river carries sediment across a valley floor
  • The amount of space something takes up
    Volume
  • which is an acquired physical trait?
    striped fur
    loose tooth
    long claws
    brown eyes
  • organisms sorted in producers, consumers, and decomp. are sorted by
    whether people eat them
    where they live
    how they get food
    whether they have a back bone
  • three kinds of cells: oak leaf, squirrel muscle, fern leaf. which will have chlorophyll
    all of the cells will contain chlorophyll
    the oak leaf and fern leaf
    only the fern leaf
    only the squirrel muscle
  • what does a plant cell have that an animal cell does not?
    cytoplasm
    chloroplast
    cell wall
    cell membrane
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