section 1
What does water do when it freezes?
it expands
What is energy?
the ability to work
What is static electricity?
a buildup of electrical charge
What is a shadow?
a dark area or shape cast by an opaque object
What is density?
how tightly packed molecules are in an object
What is volume?
the amount of space matter takes up
What does "to convert energy" mean?
to change it from one kind of energy to another
to push apart means to?
repel
What is amplitude?
the distance between the height of the wave and its resting position
What does luminous mean?
an object that can give off light
What is solution?
a mixture in which one kind of substance is dissolved into another
What is fuel?
material that is burned to release energy
What part of an atom is positive?
the nucleus
List the colors of the spectrum in order
red, orange, yellow, green, blue, violet
What is smaller an atom or molecule?
an atom
What is solvent?
What is the difference between kinetic energy and potential energy?
kinetic energy is moving or working and potential is stored or waiting
What part of an atom is negative?
the electrons
What is the difference between volume and pitch?
volume is the loudness or softness of a sound
pitch is the highness or lowness of a sound
What is a conductor?
something that can easily transfer energy
What is solute?
the substance in a solution that dissolves into the solvent
What is the difference between a closed circuit and an open circuit?
closed circuit allows an electrical current to flow an open circuit does not
What is the difference between transparent, opaque, and translucent?
transparent material allows light to pass through
opaque material blocks light
translucent material allows light to pass through but scatters it so objects cannot be seen clearly
What is an insulator?
it does not easily transfer energy