Science Exam
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Tania and lawson
bones
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h
Food chains
acid rain: rainwater, snow or fog that contains dissolved chemicals, such as carbon dioxide, that make it acidic. Acid rain can cause rock to weather faster than pure rain can.
acoustics: the study of sound and
how the design of a room or theatre
affects what is heard
air resistance: the force of air pushing
on an object as the object moves
through the air
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alum: the common name for the
chemical potassium aluminium
sulfate
annular solar eclipse: occurs when
the moon moves between the sun
and the Earth. Because it is smaller,
it blocks only the light from the
central part of the sun, so that a ring
of sunlight is seen.
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atom: a very small particle that
makes up all things. Atoms have the
same properties as the objects they
make up.
check ma r
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bar chart: a diagram using the lengths
of rectangles (bars) to show the size
of the same property for different
objects or at different times. The bars
may be horizontal or vertical; also
called a column graph.
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biological survey: a procedure that involves observing, describing and counting organisms. Photographs and, in some cases, samples are taken
biodegradable: describes a substance that breaks down or decomposes easily in the environment
biological control: a method of controlling pests by introducing one of their natural enemies
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hi from bree
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hello
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