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Alike: Acting or looking the same.
Communicate: To share
information and ideas through speaking, writing, or drawing.
Compare: To look at two or more
things to see how they are alike or different.
Data: Information.
Different: Not the same.
Dissolve: To make or become
part of a liquid mixture.
Evaporation: The process by
which a liquid becomes a gas.
Experiment: A procedure that is
carried out to investigate a scientific question.
Fair test: A test that compares
two or more things by keeping everything the same except the
thing being compared. A race is a fair test. Everyone
starts at the same place and at the same time and ends at
the same place. The only thing that is different is the
speed of the runners.
Filter: A device with tiny
openings that is used to separate insoluble solids from a
liquid or a gas.
Gas: A substance that has no
shape or size. Gases spread out to fill space. Most gases
have no color and cannot be seen.
Graph: A diagram used to show
the relationship between things.
Investigate: To study something
closely and in an organized way.
Length: The distance from one
end of something to the other.
Liquid: A substance that has no
shape but that takes up space. A liquid takes the shape of
its container.
Matter: Anything that has
weight and takes up space. Everything in our world is made
of matter.
Measure: To find out the
length, size, or weight of something.
Mixture: A combination of two
or more substances in which each substance keeps its own
properties.
Object: Something you can see
or feel.
Observe: To use your senses to
study something closely.
Predict: To say what you think
is going to happen.
Procedure: A set of steps that
tells you how to do something.
Property: Something about an
object that helps tell what it is.
Same: Alike; not different.
Senses: Touch, taste, smell,
sight, and hearing.
Shape: The form of an object.
Sieve: A device with tiny holes
that is used to separate large objects from smaller ones, or
to separate solids from a liquid.
Size: A measurement of how big
something is.
Solid: A substance that takes
up space and has its own shape.
Solution: A mixture formed when
a substance dissolves in a liquid and cannot be filtered
out. The properties of a mixture are the same throughout
the liquid.
States of matter: The three
forms that matter may take – solid, liquid, and gas.
Unit: A fixed quantity used as
a standard of measure. Inches, miles, meters, degrees, and
kilograms are all units.
Water cycle: The process by
which water moves through the ground, evaporates from earth
into the air, forms clouds, and falls back to earth as rain
or snow.
Weather: How cold or hot, wet
or dry, or windy or calm it is at a certain time and place.
Water vapor: Water that has
changed to gas.
Weight: A measurement of how
heavy something is.
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