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Science 5 1st Final exam 2020-2021 review

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  • How does hibernation help organisms to survive?
    Conserves energy or food; saves body heat
  • Which of the polar bear's adaptations help it survive in cold temperatures?
    Adaptations A and C
  • Heat expansion - when an iron bar is heated, it's length increases. Which picture (A or B) demonstrates heat expansion?
    Picture A. Distance between particles increase when matter is heated
  • After fertilisation, if the ovules turn into seeds, the ovary becomes the ____
    fruit
  • Parrots like to eat marigold seeds. How do parrots help disperse marigold seeds?
    Parrots eat the seeds and defecate (poop) in distant places
  • Which seeds are dispersed by wind?
    Seeds A & E
  • Mimicry and camouflage are examples of ______ adaptations? (Behavioral or structural)
    structural - these are physical characteristics!
  • The toad, crocodile fish, and horned lizard are examples of mimicry or camouflage?
    Camouflage (to blend in with surroundings)
  • Which stage of the life cycle of the cherry plant does it produce flowers?
    during reproduction. Remember, flowers are the reproductive organs of plants!
  • What process is happening in the picture
    Seed Dispersal
  • How does this physical structural help the moth to survive?
    The moth mimics the owl to scare away would be predators
  • Complete the quote related to states of matter: "Put __ in a cup, it becomes the cup. Put __ in a bottle, it becomes the bottle. Now, __ can flow or it can crash. Be __, my friend."
    water (if you answer liquid, it's OK)
  • Which seed dispersal method does this seed use (impatiens)?
    By explosion
  • (Guess the word) The body of a penguin is s----------d to help it swim fast
    streamlined
  • Which state of matter has the least moving particles?
    Solid
  • These animals are all adapted to live in ____ environments
    Very cold
  • Which two states of matter in the drawing have fixed VOLUME? (Hint: volume measured in liters)
    solid and liquid
  • 3 syringes (see pic) are filled with a solid, liquid, and gas. Which syringe will be the hardest to press/ push down?
    Syringe filled with a solid
  • What is the name of the process that occurs when a liquid turns into a gas?
    evaporation / boiling / vaporisation
  • Choose the best words: When a solid melts, there is an (increase/ decrease) in energy, and the particles move (faster/ slower)
    There is an INCREASE in energy, and particles move FASTER
  • To which part of the flower should pollen be transferred for pollination to occur?
    To the stigma
  • How are these seeds dispersed?
    By water/ floating on water
  • At which stage of the plant life cycle is it best to pick ripe strawberries for eating? (pick fertilisation, growth, seed formation)
    Seed formation (fruit and seeds fully formed)?
  • The radicle starts to come out of the seed at this stage of the plant lifecycle
    germination
  • In this stage of the plant lifecycle, pollen is brought to the stigma of a flower by wind or insects
    Pollination
  • When animals move into a different environment (ex. to avoid winter), this is called ____
    migration
  • How are these seeds dispersed?
    By explosion
  • Describe how this seed is dispersed
    The hooks stick to the fur of animals
  • The pollen meets the ovule in pollination or fertilisation
    Fertilisation
  • How are the seeds of these berries dispersed?
    Being eaten by animals
  • If leaves are used to capture sunlight for photosynthesis, which plants are adapted to live in places with little sunlight
    Plant B (large leaves to get as much sun as possible)
  • Which state of matter (see drawing) has the most energetic/ fastest moving particles?
    Gas
  • How does a flower’s scent and bright colour help in plant reproduction?
    Scent and colour attract insects that help in pollination