2nd Nine Weeks Science Words

1.     motor - a device that uses electricity to produce motion
2.     energy – the ability to do work
3.     switch – a device that starts and stops the flow of electrons  through a circuit
4.     electromagnet – a temporary magnet created by a flow of electric current around an iron bar
5.     thermometer – a tool used to measure temperature                                                                                
6.     spectrum -  the seven colors into which white light is split when it passes through a prism 
7.     refracted -  when light is bent as it travels through different materials
8.     prism –  a triangular clear piece of glass or plastic  
9.     opaque – when an object will not let light pass through it
10.  reflect –  when light bounces off an object or surface  
11.  lens – a curved piece of clear glass or plastic that bends (refracts) light rays
12.  transparent –  when an object is clear and allows light to travel through it easily
13.  translucent – when an object allows some light to pass through it                                        
14.  absorbed –  when light is taken in by an object 
15.  sound - a form of energy that is produced by vibrating objects                             
16.  vibration –  a rapid back and forth movement that produces sound
17.  wave –  a repeating up and down  OR  back and forth movement of matter
18.  pitch – the highness or lowness of sound