TYPES OF CHANGE
What type of change makes a new substance?
Chemical change
What is the particle placement of a solid, liquid and gas?
Close, loose, far apart
Which type of state is water in when it is ice?
solid
What is one example of a physical property, one example of a chemical property?
Size, color, texture, density, temperature, hardness, etc.
Flammability, corrosiveness, reactivity
When you add or take away energy what happens to a substance?
The state changes
Which would be an example of a physical change?
Cutting paper, Fireworks, Burning a log, Baking a cake
Cutting paper
What is the particle movement of a solid, liquid and gas?
Vibration in place, sliding, fast/free- floating, expanding
What is an example of a plasma?
Neon, lightning, plasma ball, welding, star, sun
The ability of something to start on fire would be which type of property?
Chemical property
The change from liquid to gas is called what?
Evaporation
Which would be a clue that a chemical change is occurring? Color change, size change, gas released, change of texture
Gas release
As you add energy, what happens to particle placement?
It gets further apart
What are 2 examples of a gas?
He, H, N, CO2, O2, CO
What is the difference between a chemical and a physical property?
Physical= characteristic Chemical=ability
The opposite of evaporation is what?
Condensation
answer will vary
Another name for the particles in any matter is:
Atoms or molecules
Why do some gases sink, and others float?
(ex: carbon dioxide balloon vs helium balloon)
Some gases are heavier than our atmosphere
ENERGY GRAPH SNEAK!
LOOK AT THE ENERGY GRAPH...WHAT DO THE ARROWS REPRESENT? WHAT 4 LABELS COULD YOU PLACE ON THE ARROWS?
INCREASING OR DECREASING ENERGY
PHASE CHANGES- MELTING, EVAPORATION, FREEZING, CONDENSATION
The change from solid directly to gas (ex: dry ice) is called what?
Sublimation
Give 3 reasons Oobleck is NOT a chemical change?
It is a mixture
No clues given (7)
Not a new substance
Why are you not able to put your hand through a table, but you can walk through water and air?
The particle placement of a solid is tight together, the other states of matter are further apart
What makes something a solid, liquid, gas or plasma?
(2 things…you need to get at least one!)
Particle spacing, and type of atom that makes it up
Can you always “see” a chemical property? why?
Which natural cycle of earth can we directly see all stages or changes of states?
The water cycle