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Properties
| Properties
are used to describe matter and tell what it is like or what it can do.
Observable properties include color, flexibility, hardness, texture,
and absorbency.
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States of
Matter
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States of matter are the different forms of matter; there are three that we will focus on: solid, liquid and gas.
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| Liquids
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Liquids
are a state of matter that don't have a definite shape; they take the
shape of their container and their molecules can move around.
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Buoyancy
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Keel
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Hull
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| Newton's Laws
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Energy
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Energy is the ability to do work. Energy is how things move and change. It is all around us and takes many forms.
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Potential Energy
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Potential Energy is energy that is stored.
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Kinetic Energy
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Kinetic Energy is energy that is moving. It is also called energy of motion.
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Force
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Displacement
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When
an object is put into water, it pushes water out of the way and takes
the place of the water. We say that water displacement has
occurred. Volume is a measure of the amount of space an object takes
up. Objects push water out of the way based on the object's volume.
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| Cohesion |
Cohesion is when water molecules are attracted to and "stick" to each other.
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| Adhesion |
Adhesion is when water molecules attract to and "stick" to other types of molecules.
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Engineer
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An
engineer is a person who designs and builds products, machines,
systems, or structures. Engineers want to know how and why things work.
They have scientific training that they use to make practical things.
Often, they are presented with a problem and design a way to solve that
problem.
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