States of Matter
Put the three states of matter in order from MOST TO LEAST potential energy.
Gas
Liquid
Solid
Give three pieces of evidence of a chemical change.
Unexpected Color Change
Odor
Fizzing/Bubbling
Release of Energy (sound, light)
Irreversible
Divergent Boundary
What is the most unpredictable natural hazard?
Earthquakes
What is potential and kinetic energy
Potential: The amount of space
Kinetic: The speed
When temperature increases, what happens to the molecules?
They move faster and move further away from each other
What is the difference between an exothermic and endothermic reaction?
Exo = exiting
Endo = entering
What are 3 of Alfred Wegener's pieces of evidence for continental drift
1. S. America and Africa fit like a puzzle
2. Similar Fossil Evidence on faraway continents
3. Glacier marks in places with warm/hot climate
4. Mountains are continuous on different continents
5. Rock formations line up on different continents
What is erosion?
The moving of smaller pieces of rock
If you are observing seafloor spreading, where would the oldest rock be found?
The furthest from the location of seafloor spreading
When condensation happens, draw the state of matter it is starting in and ending in.
Gas--> Liquid image
What is the law of Conservation
Matter (or energy) cannot be created or destroyed
Which plate boundary explains seafloor spreading
Divergent
What is weathering?
Breaking down of rock into smaller pieces
In this chemical equation is mass conserved? Explain why or why not.
CH4 + 2O2 --> CO2 + 2H2O
Yes because you start with 1 Carbon, 4 hydrogens, and 4 oxygens, and you end up with the same on the right of the arrow.
For each state of matter answer these two questions:
1. Is the shape constant or not?
2. Is the volume constant or not?
Solid: Constant shape and constant volume
Liquid: NO Constant shape and constant volume
Gas: NO Constant shape and NO constant volume
What are two pieces of evidence for a physical change?
Change in state of matter (going from a solid to liquid or gas)
Change in shape
Define a subduction zone
When one plate goes underneath another
What are some things that help with erosion?
Water, Wind, People
Sedimentary
The state of matter is going through a phase change
In our sunset lab, how do you know a chemical change occurred?
You saw a change of color, exothermic and endothermic reaction, Bubbling, gas formation,
If you have convergent plate boundaries, what is happening, and what is forming?
Two plates coming towards each other. The can form mountains or volcanoes
What are the negative consequence of natural hazards
Many options
What is an ocean trench
Where an ocean plate and continental plate converge. Hint: Warm-Up