Density
What is density?
Density is the amount of matter in an object.
Which type of matter is NOT a pure substance?
Mixture
Is water in a salt water solution the solvent or solute?
Solvent
What state of matter takes the shape of the container it is in and has a fixed volume?
Liquid
What is the change called when solid melts to liquid?
Fusion
What is the formula for density?
Density= mass/volume
Give an example of an element
carbon, oxygen, hydrogen, gold, silver, iron, helium, nitrogen, etc.
Give an example of a heterogeneous mixture.
What two states of matter are not rigid?
Gas and Liquid
What is it called when a solid turn to a gas?
Sublimation
What units do we use for density?
Grams and millileters
g/mL (grams per milliliter)
g/cm^3 (grams per centimeter cubed OR grams per cubic centimeter)
Which type of matter has only one type of atom?
Element
Give an example of a homogeneous mixture
smoothie, tomato soup, milk, tea, etc.
Which state of matter has high energy particles?
Gas
What is it called when a gas turns to a solid?
Deposition
What causes an object to float in its surroundings?
The object's density being less than the density of its surroundings.
Which type of mixture has the same composition throughout?
Homogeneous
What type of mixture is a box of different colored toys?
Heterogeneous mixture
Which state of matter has a fixed volume and shape?
Solid
What is another word for "freezing"?
solidification
What is an example of a matter's solid state floating in its liquid state?
Ice cube floating a glass of water
Can compounds be physically separated?
No
Give the definition of a solution
A homogeneous mixture of two or more substances where one is dissolved in the other
What state of matter has particles that vibrate close together?
Solid
What causes changes in states of matter?
Thermal energy