Show:
Classifying Matter
Physical Properties
Chemical Properties
Miscellaneous
Final Jeopardy Question
100
A substance that cannot be broken down into simpler substances
What is an element
100
This is one physical property
What is viscosity, conductivity, malleability, hardness, melting point, boiling point, density
100
These are two chemical properties that were discussed in class
What are flammability and reactivity
100
Formation of a gas is this type of change.
What is chemical
200
The two types of mixtures we discussed in class
What are heterogeneous and homogeneous mixtures
200
A high viscosity means the substance is this.
What is thick
200
This is an example that a chemical change has happened
What is color change / production of a gas / formation of a precipitate
200
This separation method separates a mixture based on boiling points
What is distillation
300
A substance that is made from two or more simpler substances
What is a compound
300
This is one of two ways to separate mixtures.
What is filtration / distillation
300
This forms when a solid forms and separates from a liquid mixture.
What is a precipitate
300
What is the difference between heterogeneous and homogeneous mixtures?
Heterogeneous mixtures are unevenly mixed and homogeneous mixtures are evenly mixed.
400
Matter that always has exactly the same composition
What is a pure substance
400
What does it mean for something to be malleable?
it can be hammered and molded into a shape
400
What are some examples of a chemical change that were mentioned in class yesterday?
Bananas changing colors / leaves changing colors / milk curdling / explosions of fireworks / food spoiling
400
Name one physical property and one chemical property of wood
Physical Property - wood can be cut Chemical Property - it is flammable
500
This is an example of a suspension
What is sand in a bottle of water
500
These are the three uses of physical properties
What are identifying materials, choosing materials, separating materials
500
What is the definition of a chemical change?
When a substance reacts and forms 1 or more new substances
500
What is the difference between a physical change and a chemical change?
A physical change does not change the composition (structure) of the matter. A chemical change does change the composition of the matter.
500
How does a mixture with carbon and oxygen differ from a compound of carbon and oxygen?
A mixture can have as many carbons and oxygens mixing together (like salsa). A compound has to have a fixed amount (like carbon dioxide - it always will have 1 carbon and 2 oxygens).