Physical Property
An observable or measurable change, but not a change in the substance or type of matter.
What is a physical property?
Frying an egg.
What is chemical change?
Calcium carbonate (CaCO3) is an example of this.
What is a compound?
List three chemical properties.
What are flammability, reactivity, and rusting (oxidation)?
The ability to attract iron, cobalt, or nickel.
What is magnetism?
Find the density of a toy car that has a mass of 10 g and a volume of 5 mL.
What is 2 g/mL?
How does antifreeze in cars help your engine?
What is they lower the freezing point and raise the boiling point?
Explain the difference between a heterogenous and a homogenous mixture.
Heterogenous - the particles are not in proportion and can be easily separated.
Homogenous - the particles are in equal proportion and cannot be easily separated.
Give two examples of physical properties.
What are color, length, volume, mass, smell, etc.?
What happens when pure sodium or potassium is exposed to water?
What is an explosion or violent chemical reaction?
Explain the difference between mass and weight.
Mass is the number of particles in a sample of matter. Weight is gravity's effect on the mass.
The mathematical formula "mass divided by volume" lets you find this.
What is density?
When humans combine oxygen with the food that they eat, what is produced?
What is carbon dioxide?
Metals are good ________ of both heat and electricity.
What are conductors?
A wick on a candle burning and the wax melting.
What is both a chemical and physical change?
In the elephant toothpaste experiment, this product was trapped inside the bubbles that formed.
What is oxygen gas?