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Physical
Chemical
Changes
Random
100
This can be observed or measured without changing the matter's identity.
What is a physical property?
100
The amount of matter in a specific space or volume.
What is density?
100
The 2 main chemical properties.
What is flammability and reactivity?
100
This chemical property was observed in lab yesterday.
What is a reactivity?
100
This is how we describe characteristic properties.
What is a chemical OR physical property?
200
Describes the relationship between mass and volume.
What is density?
200
This explains the term ductility.
What is being able to pull a substance into a wire? (example?)
200
Burning changes wood in this way.
What is turn the wood to ash and smoke which is not reversible?
200
This changes if a chemical change has taken place.
What is the composition of the material?
200
This is what flammable means.
What is having the ability to burn?
300
Flammability is an example of this.
What is a chemical property?
300
H20 is a great example of this physical property.
What is change of state?
300
This is why it's sometimes difficult to know when a material has a chemical property.
What is they are difficult to observe?
300
Pounding aluminum into thin sheets of foil is an example of this physical change.
What is malleability?
300
This is why characteristic properties are useful.
What is help us to identify matter?
400
The six main examples of physical properties.
What is thermal conductivity, state, density, solubility, ductility, and malleability?
400
This explains why solubility is a physical property.
What is the dissolved substance still retains its own identity when it mixes with water?
400
This is the definition of chemical property.
What is the ability of two or more substances to combine and form NEW substances?
400
These observations help to explain how we know baking a cake is a chemical change.
What is the odor changes, the trapped gas bubbles, and the final color and texture of cake is different?
400
When a metal rusts, it is reacting with this material.
What is oxygen (O)?
500
The mass of an object is 20 grams. The volume of the object is 4 cm3. The density of this object is _________ and it will _________ in water.
What is 5g/cm3 and it will sink in water?
500
A styrofoam cup is a great example of this property.
What is thermal conductivity?
500
This is the definition of chemical change.
What is a change when one or more substances change into new substances that have new and different properties?
500
One example of a chemical change that IS reversible.
What is hydrogen(H) and oxygen(O) joining to form H2O can be split back into H and O again? (electrolysis)
500
This compares the density of a soda can and a crushed soda can.
What is they are the same because density is a property of matter that is unique to each material?