In this type of wave, energy vibrates the particles of the medium perpendicular to the direction of the wave: aka "up and down."
What is a transverse wave?
200
In this kind of reaction or process, energy is released.
What is an exothermic reaction/process?
200
This class of matter is a good conductor of electricity?
What is a metal?
200
This number makes an atom of each element unique - it's also the number of protons.
What is the atomic number?
200
The process by which the bond between a compound is broken (when mixed with water) leaving two charged particles.
What is dissociation. (It's what acids and bases do!)
200
A mechanical wave needs this in order to carry energy.
What is matter?
300
When water freezes, where does its energy go?
What is the environment?
300
Another word for a characteristic of a substance or element - it is often shared by elements in the same group.
What is a property?
300
What is required to neutralize a strong base.
What is a strong acid?
300
Radio waves, microwaves, gamma waves, and ultraviolet waves, are all examples of this kind of wave. It doesn't need matter - and sound is NOT one of them.
What is an electromagnetic wave?
400
Energy travels quickest through a medium in this state; here's a hint - it's particles are closest together.
What is a solid?
400
The two particles found in the nucleus of an atom.
What are neutrons and protons?
400
This is the name for the group of elements with 2 valence electrons.
What is alkaline earth metals?
400
A space without matter; sound cannot travel through it.
What is a vacuum?
400
The distance between two wave crests or troughs.
What is wavelength?
500
This is the kind of process that occurs when an ice cube turns into a gas.
What is an endothermic reaction?
500
Covalent bonds often occur between these classes of elements.
What are nonmetals?
500
The name of the force holding together covalent bonds.
What is electrostatic force?
500
This behavior of light causes items in water to look bigger or bent. It is caused by light waves bending when entering new mediums, such as moving from air to water.
What is refraction?
500
The phenomena that causes noise to sound loudest at a high pitch as an object moves toward you and at a low pitch as it moves away from you.