Vocabulary
Anything that has mass and volume is called this
What is Matter?
We measured the mass of balloons and found that the weighed more when inflated than when deflated. What scientific principle about air did we demonstrate? (Must have entire principle)
Air has mass and volume, therefore air is matter
What two things does all matter have in common?
1. All matter has mass and volume
2. All matter is made of particles
(Just one is correct)
Draw a model of an odor reaching your nose
Model must include odor particles and movement
When something is squeezed so it takes up less room
What is compression?
We melted menthol and then it condensed on the watchglass. What scientific principle did we demonstrate?
Matter can exist in three states: Solid, liquid and gas
What is a gas
Draw a model of menthol going into the gas phase
Model must show menthol particles leaving the solid phase and going into a gas phase
Occurs when molecules then go from a liquid to a gas form.
What is evaporation?
We learned that matter can exist in three phases at room temperature. What examples did we learn about in class? (Give 3 examples- one in each phase)
Answers can vary. Some examples
Menthol - solid, Oxygen - Gas, Wax - solid or liquid, Water - Liquid
When air expands that means that what happens?
There is more empty space between the molecules
Draw a model of air being compressed
Model must include odor particles and movement and show that there is less space between particles
This is when everyone agrees
What is consensus?
What did the video of the giant beach ball demonstrate?
Air has volume or Air has mass
What are three characteristics of a gas? (Three things that we have shown to be true of gases)
Can include any of the following:
No definite shape
No definite volume
Can expand
Can Compress
Draw a model of molecules moving in the gas phase. Explain how the molecules move.
Model must include molecules with empty space moving in straight lines
The process of molecules in the gaseous state slowing down and becoming a liquid
What is Condensation?
Explain why there is water on the outside of a cold can on a warm day. Explain what happens to the molecules and where the water comes from
Warm air is cooled by the can. Water molecules which are in the air condense and form water molecules on the outside of the can.
Draw a model of of a substance sublimating.
Model must include particles leaving the solid phase and going into the gaseous phase.