CRYSTALS
Snowflakes, salt, sugar and diamonds are all this type of thing
Crystals
This is what eggshells are made of — the same material as chalk and seashells
Calcium Carbonate
This living ingredient was our secret weapon that sped everything up
Yeast
A reaction that releases heat is called this
Exothermic
True or False: Diamonds are crystals
True
Crystals form when molecules cool down and line up in this kind of pattern
A perfect repeating pattern
This is the liquid we put the egg in to dissolve the shell
Vinegar
This household liquid breaks down into water and oxygen — yeast sped that up massively
Hydrogen Peroxide
Something that speeds up a chemical reaction without being used up itself
Catalyst
True or False: The bubbles on the egg were hydrogen gas
FALSE they were co2
Hot water can hold more dissolved minerals than cold water — as it cools the minerals stack and form crystals. This is called what?
Supersaturation
These appeared on the shell immediately when it touched the vinegar — they were CO2 gas being released
Bubbles
The dish soap did this one job in the experiment
Trapped the oxygen into bubbles / made the foam
When two substances combine and create something completely new
Chemical Reaction
True or False: Soda is acidic and does the same thing to your teeth as vinegar did to the egg
True
The largest crystal was found where?
Mexico
After the shell dissolved this held the egg together like a stretchy skin
The Membrane
The bottle felt warm after the reaction — this means the reaction was doing what to energy
Releasing heat
Liquid passing through a thin membrane from one side to the other
True or False: The foam from elephant toothpaste is toxic and dangerous
FALSE it is just water oxygen and soap
The three types of crystal names we saw today?
Quartz, salt crystal, ice crystal
The egg slowly absorbed vinegar through the membrane and got bigger — this process is called what
Osmosis
The enzyme inside the yeast that caused the whole reaction is the same one your liver makes right now
Catalase
When liquid holds more dissolved minerals than it normally can so they form crystals
Supersaturation
True or False: Your liver makes the same enzyme we used in elephant toothpaste
TRUE — catalase!