Molecules
What happens to molecules when they are compressed?
They move closer together.
True or False
All odors are made of particles
True
Solid, Liquid, Gas
A water molecule in the gas, liquid, and solid phase is the _____________ in each phase?
Same
What happens to molecules when the container is able to expand.
They move further apart.
What happens to water molecules when the temperature decreases?
They slow down and move close together.
List 3 characteristics of gas.
No definite Shape
No definite Volume
Can compress/expand
Added to or Removed from Container
What are the small bubbles in a pot of boiling water?
Gaseous water Molecule
What happens to the pressure when air is compressed?
Increases
What is not a characteristic of all matter?
Color
List 3 characteristics of Solids.
fixed shape
fixed volume
hard
Shape and Size
What happens to the pressure when air expands?
Decreases
What is important to have on a model of molecules?
Arrows, Key, Spacing
List 2 characteristics of liquid.
no fixed shape
fixed volume
Does measuring the mass of two tanks of gas help determine the amount of gas in the tank?
Yes/No Explain
Yes,
Calcium and nitrogen are both elements. What makes one element different from another element?
Different Atoms
Different Properties
What happens on lid of a pot of boiling water?
The steam cools and water molecules move closer together.
What is a property of a substance?
characteristic that describes a material
If a substance is made up of only one type of atom, the substance is a?
Element