4th grade Earth and Space Vocabulary Cards

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4th grade Earth and Space Vocabulary Cards
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Non-renewable
Fossil fuels coal, natural gas, and
oil Minerals
Nonrenewable resources are resources that
nature cannot replace in our lifetime.
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Natural resources that can be renewed or replaced by nature, such as water or plants.
Renewable Resource
Oxygen Soil Water Plants Animals
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Inexhaustible Resource
Sun, wind, and ocean tides
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Natural Resource
Any of the useful minerals and other materials
that people take from the Earth.
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Fossil Fuels

• A fuel that formed
• from the decayed
• remains of ancient
• plants and animals
• oil, natural gas, coal

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Conservation

• The wise use and
• protection of our
• natural resources.
• REUSE, REDUCE, RECYCLE

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Moon
A natural object that orbits a planet.
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Tide
Changes in water level at the shoreline that are
caused by the pull of gravity between Earth and
its moon.
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Axis

• An imaginary line that passes from the North Pole
  to
• the South Pole through Earths center.

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Orbit
The path an object takes as it moves around
another object in space.
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Revolve
Travel in a path large circle
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Rotate
Spin The Earth rotates on its axis.
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Erosion
The process of moving sediment from one place to
another.
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Weathering
The process by which rock is worn down and broken
apart.
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Deposition
The process in which materials eroded by water,
wind, or ice are dropped in a new place.
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Sediment
Weathered bits of rocks, soils, sand, shells, and
the remains of organisms.
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Weather
Condition of the atmosphere in a certain place at
a certain time.
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Thermometer
A tool that measures temperature.
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Wind
Moving air caused by the uneven heating of the
Earths surface.
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Humidity
A hygrometer measures humidity.
The amount of moisture of water vapor in the air.
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Front
The place where one air mass meets and pushes
aside another air mass.
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Air Pressure
The weight of air pushing on everything around it.
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Meteorologist
Scientist who studies the weather and makes
predictions.
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Water Cycle
Change of water from one state to another as it
moves between Earths surface and the atmosphere.
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Evaporation
evaporation
The process of changing from a liquid to a gas.
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Precipitation
precipitation
Water that falls to the Earths surface as rain,
snow, sleet or hail.
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Accumulation
accumulation
The collection of water, such as a stream, puddle
or lake.
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Condensation
To change from a gas to a liquid as the
temperature decreases.
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Ground Water
Water that collects underground in cracks and
spaces in rocks.
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Run-off
Water that is not absorbed into the ground,
instead flows into streams or other collection
areas.
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Gravity
The force that pulls objects towards each other.
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Soil
The loose top layer of the Earths surface. It
is made up of small pieces of rock (sand and
clay), bits of dead plant and animal material
(humus), water, air, and living organisms.
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Humus
Decaying plant and animal material in soil.
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Sand
Sand under microscope
Soil particles that ring in size from .5 to 2.0
mm in diameter
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Silt
Soil particles that range in size from .002 to
.05 mm in diameter.
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Clay
Soil particles less than .002 mm in diameter.
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Nutrients
A substance that an organism needs in order to
survive and grow.
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Potting Soil
A mixture of sand, silt, clay, and humus.
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Retain
To hold or to keep.
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Shadow
A dark image cast on the ground or surface when
the light is blocked by an object.