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8th Grade Science - you got this!

Quiz by Amy Paksoy

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30 questions
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  • Q1

    What group on the periodic table will likely not react?

    group 18 (the Noble Gases)

    Group 1 (the Alkali Metals)

    Group 2 (the Alkaline Earth Metals)

    30s
  • Q2

    What phase (state of matter is most of Earth's freshwater?

    liquid

    gas

    solid

    30s
  • Q3

    The process of replanting trees and other vegetation in a mined area is called ____________.

    reclamation

    deforestation

    clear-cutting

    sedimentation

    30s
  • Q4

    Which is not a direct source of water pollution but may cause water quality issues?

    deforestation

    waste from ships

    industrial waste

    agricultural run off

    30s
  • Q5

    What life form is most likely in the lowest level of sedimentary rock?

    ferns

    simple marine organisms

    dinosaurs

    humans

    30s
  • Q6

    What is the energy source for algae?

    plankton

    sun

    people

    30s
  • Q7

    Which is an abiotic factor in an ecosystem?

    decomposers

    tree

    fungi

    water

    30s
  • Q8

    Brackish water is found _______________________

    where rivers flow into the ocean - the estuary

    at the beginning of a river

    in middle school bathrooms

    30s
  • Q9

    Evidence of geologic history can be found in ___________

    fossils

    rock samples

    atmosphere

    30s
  • Q10

    Ice cores are used to study _________________.

    past life forms

    past climates

    30s
  • Q11

    What would help scientists know that rock layers formed at the same time hundreds of miles apart?

    trees in the same place

    index fossils in the same layer

    animals that are similar

    30s
  • Q12

    How can a scientist determine if an igneous intrusion is OLDER or YOUNGER?

    use radiometric dating on the igneous rock

    analyze rock positions

    determine what type of rock the igneous intrusion is

    30s
  • Q13

    Which process of the water cycle would increase the salinity of the ocean?

    evaporation

    condensation

    precipitation

    30s
  • Q14

    Which of the following can be physically separated by being filtered?

    compound

    element

    mixture

    30s
  • Q15

    Why are decomposers important in an ecosystem?

    they look pretty

    animals feed on them

    they return nutrients to the soil

    30s

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