Light
Light from things made by humans, usually powered by electricity or gas.
Artificial Light
Sound is created when something does this.
Vibrate
The smallest unit that matter can be divided into
Atoms
occurs when a solid becomes a liquid.
Melting
Water evaporating, turning into clouds, and then falling as rain is known as the
water cycle
Occurs when light stops at the object.
Absorbtion
The number of vibrations made per second is called.
Frequency.
What are the three most common states of matter
Solid, liquid, gas
occurs when a liquid becomes a solid.
Freezing
Who was the first man to land on the moon
Neil Armstrong
Occurs when light bounces off the surface of a material.
Reflection
Sound travels in ______.
Waves
Which state has particles that are packed together the most tightly.
Solids
occurs when a liquid becomes a gas
Evaporation
Which is the fastest animal in the world.
The peregrine falcon
Occurs when light passes through an object and bends.
Refraction
This unit of measure is used to measure the volume of sound.
Deciblels
Which state of matter has particles that move the fastest.
Gas
occurs when a gas becomes a liquid.
condensation
occurs when a gas becomes a solid.
deposition
These materials do not allow any light to pass through.
Opaque
Some animals usesound waves to determine where objects are in an environment. This is called______.
Echolocation
The energy in an object due to the movement of its molecules and atoms.
Thermal energy
occurs when a solid becomes a gas
sublimation
How many stars are in our solar system
One