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Science Chapter 2

Quiz by Debbie Cilio

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21 questions
Show answers
  • Q1
    Weathering
    The breaking down of rocks and other materials on the Earth's surface.
    30s
  • Q2
    Topsoil
    A mixture of humus, minerals, and small amounts of clay and sand. Most plants have their roots here!
    30s
  • Q3
    Subsoil
    A mixture of clay and worn down rock. Earthworms bring subsoil to the surface. When it rain, minerals from rain water travel down into the subsoil
    30s
  • Q4
    Soil
    A mixture of rock, organic material, water and air that can support the life of a plant.
    30s
  • Q5
    Humus
    The remains of decayed plants and animals.
    30s
  • Q6
    How is soil formed?
    Rock on Earth's surface is broken (weathered) down into smaller pieces. These pieces come together over time to make soil.
    30s
  • Q7
    How does Humus help soil?
    Humus puts nutrients (food) in the soil for plants and helps soil retain (hold onto) moisture
    30s
  • Q8
    Silt
    Rocks smaller than sand but bigger than clay
    30s
  • Q9
    Decay
    When dead plants or animals break down into small pieces
    30s
  • Q10
    Conservation
    wise use of such things as oil, air, trees and water
    30s
  • Q11
    Natural Resource
    any of Earth's useful materials
    30s
  • Q12
    When is energy produced?
    When fuel burns.
    30s
  • Q13
    One of the properties of a mineral is
    hardness
    30s
  • Q14
    Fossil fuels are
    nonrenewable resources
    30s
  • Q15
    A wind farm uses the wind
    to produce electricity.
    30s

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