For Elf
What is a Heterogenous mixture?
mixed but not chemically. Just stirred
Example: Fruit salad
What is Distillation?
Involves separating liquids by boiling them. The liquid with lower boiling point will vaporize first, leaving the other liquid behind
What are crystaline solids?
Particales are in a set pattern and melt at a specific temp.
what characteristics does gas have?
no define shape
particles move quickly (bouncing off each other)
gases expand fill the shape of their container's volume
Compounds?
a substance made up of two or more elements that are chemically bonded together in set ratio
What is a Homogenius Mixture?
Difficult to see the different parts
Example:Air
What is weight?
The force exerted on a body by gravity
What are Amorphous Solids
particles not arranged in a set pattern and do not melt a specific temperature.
what is thermal energy?
total kinetic and potential energy of all particles in a object or substance
Mixture?
made up of two or more substances that are together in the same place but their atoms are NOT chemically bonded
What is Magnetic Attraction?
Hold a magnet near a mixture to pull out anything that is attracted to it
What is volume?
The amount of space an object takes up
What are the characteristics of liquids?
they have a definite volume
no definite shape
particles are always in contact
what is temperature???
the average kinetic of particles in a substance or object
example of an element:
carbon or oxygen
What is evaporation?
Good way to separate dissolved substances from water
Density?
The measurement of how tightly a material is packed together
what is surface tension?
the tension of the surface film a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid
Elements?
substances that are made up of only one type of atom
example of molecules
CO2
Use of filter to allow small particles, such as water, to pass through while filtering out larger particles
What are the characteristics of solids?
1. Definate shape
2. Definite volume
3. Particles are packed close together in fixed state and only vibratre against each other
what is viscosity?
Viscosity is a liquids resistance to flow or change shape
Molecules?
a group of two or more atoms held together by chemical bonds
example of a heterogeneous mixture
honey