While conducting an investigation on refraction, a teacher uses a red laser pointer to show how a beam of light is affected as it passes through several glass objects. The teacher should make sure that the
A: beam of light does not travel toward the students.

Which change increases the rate of a chemical reaction?
A: increasing the reaction temperature

An element with which property would be best to use in electrical wiring?
A: conductor

What can a moving magnet in a coil of copper wire cause?
A:
an electric current