Study

8th grade Science End-of Year Assessment

  •   0%
  •  0     0     0

      Back   Restart
  • Which situation BEST shows natural selection?
    Traits are chosen randomly
    Individuals with helpful traits survive and reproduce
    All organisms survive equally
    Organisms choose traits
  • Gravity’s role in the water cycle is to
    Pull water downward
  • What affects the flow of ocean currents and wind?
    shape of landforms
  • Will a plant placed in sunlight grow more or less than if it were placed in darkness?
    more
  • The periodic table is arranged by
    Atomic number
  • Why do denser liquids sink in a column?
    Greater mass per volume
  • Which food produces the MOST carbon emissions?
    Beef
    Tomatoes
    Rice
    Carrots
  • Order the liquids from most to least dense: 25 g/mL, 5 g/mL, 10 g/mL
    5 g/mL, 10 g/mL, 25 g/mL
  • Two or more atoms bonded together
    molecule
  • Pollination between two different plants is what type of reproduction?
    Sexual
  • Why is it warmer at the equator than at the poles?
    the sun is at an angle towards the pole
  • Which is a cause of mutations?
    exposure to UV light, x-rays, radiation, chemicals
  • What two things drive the water cycle?
    Sun’s energy and gravity
  • Why does low pressure often bring storms?
    warm air rises, cools, condenses and forms clouds
  • Why would a population split into two groups over time?
    Different traits are favored in different environments
  • A section of DNA that codes for a trait is called a
    Gene
  • Physical properties can be observed without changing the substance.
    true
  • The boundary between air masses is called a ...
    Front
  • What is an advantage of sexual reproduction over asexual reproduction?
    Increases genetic diversity
  • Sexual reproduction results in offspring that have
    Have genetic variation
  • Will an environmental factor such as drought affect plant growth?
    yes
  • Where do you find the atomic mass of an element on the periodic table.
    Bottom number that is a decimal
  • Which is evidence of climate change?
    Long-term temperature trends
  • What type of environment would favor flowers that open at night?
    Presence of nocturnal or nighttime pollinators
  • Matter is anything that...
    Has mass and takes up space
  • Why does sexual reproduction help survival?
    More variation increases adaptation
  • Air pressure moves from...
    High to low pressure
  • Why does sunlight intensity vary on Earth?
    Angle of sunlight
  • What will MOST likely happen over generations if different traits help organisms survive in different parts of an environment?
    Traits disappear
    All organisms die
    Different populations will form based on traits
    All organisms become identical
    • Your experience on this site will be improved by allowing cookies.