Elements and compounds
What are the two types of mixtures?
Heterogeneous mixtures and homogeneous mixtures
What are the four states of matter?
Solid, liquid, gas, plasma
What is an example of an insulator?
Rubber, wood, plastic, glass, etc.
What are the three ways of heat transfer?
Conduction, Convection, and Radiation
What is one way to tell metals from one another?
Malleability, hardness, brittleness. conductivity
What is a compound?
A pure substance composed of two or more different elements joined by chemical bonds
The states of matter are based upon what three things?
Particle arrangement, energy of particles and distance of particles. (A.E.D)
What happens to particles in a gas or liquid when heated?
They spread out and it affects fluid movements
True or false: Heat always moves from a cooler place to a warmer place
False
What is hardness?
the property of an object that resists being crushed or refined
What is the difference between a solute and a solvent?
A solute is the part that is being dissolved and the solvent is the part that's doing the dissolving
What is a physical property of matter?
A characteristic that can be observed or measured without changing the identity of a substance
What is conduction?
When heating metal, the particles begin vibrating, causing the particles beside them to vibrate, passing through the heat.
What is a fluid?
A liquid gas
How does a gas become plasma?
It requires ionization
What are three types of solutes?
Strong electrolytes, weak electrolytes and non-electrolytes
What is plasma?
An ionized gas, both a very good conductor of electricity and something affected by magnetic fields. It has an indefinite shape and volume.
What happens to metal when heated?
The electrons gain kinetic energy and transfer it throughout
How does heat energy get from the sun to the earth?
Radiation
What is it called when a solid goes straight into the gas phase?
Sublimation
What is an electrolyte?
Electrolytes are substances that, when dissolved in water can conduct an electric current.
What is the kinetic theory of matter?
Molecules are made of particles which are in continual, random, motion.
What happens when a cool, dense fluid is put through warmer, less dense fluids?
The denser, cooler fluid sinks
Why does metal feel colder than wood, if they are both the same temperature?
Metal is a conductor and wood is an insulator
What objects would you use to find an objects density?
A triple beam balance and a graduated cylinder or ruler