4th Grade Science Vocabulary

4th Grade Science Vocab - Test 10/22

Heat Flow

the movement of heat from one object or area to another

Heat Gain

the increase in temperature in an object or space due to added heat

Heat Loss

the decrease in temperature in an object or space due to the escape of heat

Insulator (Poor Conductor)

a material that does not conduct heat or electricity well 

Motion

the action or process of moving or being moved

Opaque

not able to be seen through; not transparent

Pitch

the highness or lowness of a sound, determined by frequency of the sound wave

Reflect

to bounce back light, heat or sound from another surface

Sound

vibrations that travel through the air or another medium and can be heard

Translucent

allowing some light to pass thought but not enough to see clear images

Transparent

allowing light to pass through so that objects behind can be distinctly seen

Vibration

a rapid back-and-forth movement that creates sound