Pure of Heart
All Mixed Up
The Conservative Choice
Going Through Changes
The Properties Ladder
100
The "anti-helium" gas sulfur hexafluoride has a chemical formula of SF₆, which makes it this type of matter.
compound
100
What type of mixture is it?
heterogenous
100
The Law of Conservation of Mass says that matter can't be ______ or ______, it can only change form.
created or destroyed
100
Ripping a toothbrush down the middle so that you have two skinny toothbrushes would be this type of change.
unhinged... I mean physical.
100
This is a fancy science word for "shiny"
lustrous... not even really a science word though... anyone can use this one.
200
Captain Planet is summoned by combining the elements of earth, wind, water, fire, and monkey - I mean heart. How many of these are actually classified as elements?
zero.
earth is a heterogenous mixture, wind is moving air which is a homogenous mixture of gases, water is a compound, fire is incandescent gas and plasma, and heart is a muscle.
200
This is what the word "homogenous" means
uniform - the same appearance and properties in all directions
200
A person measures out 100g of water, and combines it in a closed container with 1 g of sodium metal. After it explodes, they measure the mass and expect it to be this quantity.
101g
200
Burning a toothbrush until all that remains is a pile of carbon and wafts of toxic gas would be this type of change.
Chemical
200
This is a fancy science word for "can be flattened into sheets"
malleable
300
This type of matter can neither be separated by physical changes, nor by chemical changes.
Element
300
This is how you might separate a mixture of sand and iron filings.
magnet
300
Technically speaking, the Law of Conservation of Mass only works in this type of system.
closed
300
This type of change results in new arrangement(s) of matter that weren't originally there.
chemical
300
This is a fancy science word for "can be stretched into wires"
ductile
400
Studenty McStudent looks at the formula Cl₂ and says "Well, that's got two capital letters so it must be a compound." Our dear friend Studenty has made this error.
Mixing up lowercase L and uppercase I
400
This is another word for a homogenous mixture involving liquid(s).
solution
400
These French people first experimentally demonstrated the Law of Conservation of Mass... before being executes by guillotine during the French Revolution.
Antoine and Marie-Anne Lavoisier
400
Sugar and water are mixed, then the mixture is heated until it becomes a delicious caramel. You're probably going to notice these signs of a chemical change.
colour, odour, taste
400
These are the freezing and boiling points of pure water in degrees Celsius (like any sensible person would use).
What are 0℃ and 100℃ respectively.
500
This is the only way that a substance made of a single type of atom can be broken down.
nuclear changes
500
Mayonnaise is this type of homogenous mixture.
Why would you remember this? It was only mentioned once is a video.
emulsion / suspension
500
This is a weird scenario in which the Law of Conservation of Mass does not apply. Matter doesn't go missing, it is literally created or destroyed.
nuclear fusion/fission, and pair annihilation and production.
500
In a chemical reaction, the arrangement(s) of matter you start with are called ______, while the arrangement(s) of matter you end with are called ________.
reactants, products in that order.
500
These are the freezing and boiling points of pure water in degrees Fahrenheit (like a bumbling babbling baboon would use).
What are 32℉ and 212℉ respectively.