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Review Lewisville- 5th grade
science review
24
Science
Not Applicable
10/17/2005

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Cards

Term
mixture
Definition
2 or more substances mixed together, that CAN be separated
Term
compound
Definition
2 or more substances that are mixed together, but CANNOT be separated
Term
evaporate-
Definition
a method of separating substances, where the water becomes gas, leaving the dry ingredients behind.
Term
filtering
Definition
to use a strainer or filter that lets particles of a certain size through, but not particles that are smaller. Used to separate larger particles from mixtures.
Term
distilling
Definition
A way to separate liquid from mixtures. Boil the mixture, turning the liquid to gas, but trapping it and cooling it so when it turns into a liquid again, it is pure.
Term
settling
Definition
A way to separate mixtures, where the heavier particles go to the bottom, and the lighter particles stay at the top.
Term
tides
Definition
rising and falling of the seas, caused by the moon's gravity making the oceans bulge.
Term
rotate
Definition
to spin on an axis
Term
revolve
Definition
To orbit around another object, like the moon orbits the earth
Term
moon phases
Definition
the amount of the moon that can be seen at one time- it changes throughout the month.
Term
waxing
Definition
the part of the moon you can see is getting bigger.
Term
waning
Definition
The part of the moon you can see is getting smaller
Term
solar eclipse
Definition
when the moon's shadow gets in the way, and you can't see all of the sun
Term
lunar eclipse
Definition
when the earth gets between the sun and the moon, and you can't see all of the moon.
Term
day and night are caused by:
Definition
The rotation of the earth
Term
A year
Definition
Length of time it takes for the earth to revolve around the sun
Term
A lunar month
Definition
length of time it takes for the moon to orbit the earth
Term
hypothesis
Definition
an educated guess, based on what you already know
Term
observations
Definition
things you can actually be SURE of using your senses- sight, sound, taste, feel, smell.
Term
inferences
Definition
Things you think is true because of your observations
Term
tectonic plate
Definition
one of the constantly moving plates that make up the earth: where they come together, earthquakes and volcanoes occur.
Term
sun spots
Definition
dark spots on the sun caused by areas of cooler gas
Term
solar wind
Definition
ionically charged particles that blow out from the sun into space
Term
richter scale
Definition
a scale that measures the force of an earthquake by how much energy is released
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