| Topic |
2001–2012 |
2013–present |
|
[2#]
[computer memory(8)#]
[4#]
|
[1#]
[8#]
[1#]
[icecube(8)#]
[4#]
[1#]
[1#]
[2#]
[8#]
[8#]
[9#]
[1#]
[Farmer's market(6)#]
[ants(1b)#]
[2bc#]
[2b#]
[4c#]
[2d#]
[2#]
[Neverclear (4a)#]
[2#]
[4#]
[Spot(4b)#]
[6#]
[6#]
[7cd#]
[1ab#]
[1b#]
[4cd#]
|
|
[4#]
[6#]
[quinoa(2)#]
[4#]
[tamarin(5)#]
[internet users(6)#]
[data plan(1)#]
[2#]
[farms(5)#]
[giraffe(1)#]
[3#]
|
[helmets(2)#]
[frogs(4)#]
[8#]
[9#]
[midterm(3)#]
[supermarket(7)#]
[2#]
[coffee(5)#]
[frogs and butterflies(6)#]
[CATS(5)#]
[ammonia(6)#]
[1#]
[coal power(5)#]
[6#]
[9#]
[3#]
[5#]
[8#]
[2#]
[scooter(4)#]
[strawberry picking(7)#]
[Chuck's eggs(2)#]
[9#]
[time travel(6c)#]
[7a#]
[eggs(9)#]
[2#]
[6a#]
[energy(9)#]
[10a#]
[7ac#]
[4a#]
[2c#]
[1a#]
[2#]
[6b#]
[2#]
[Mass Spring(5)#]
[7a#]
[#Math105Fun(1a)#]
[2b#]
[Apples(5)#]
[1c#]
[Watts(4)#]
[1c#]
[Detroit(2c)#]
[water bill(6bc)#]
[2a#]
|
|
[1#]
[1#]
[karat rating(8)#]
[brick(4)#]
[7#]
[giraffe(1)#]
[2#]
[rabbit(8)#]
|
[1#]
[chlorine(6)#]
[7#]
[painkiller(5)#]
[1#]
[6#]
[advertising(8)#]
[1#]
[1#]
[3#]
[frisbee(3b)#]
[7b#]
[1ab#]
[2a#]
[3a#]
[2a#]
[2#]
[Smashing Squash(3b)#]
[1a#]
[1a#]
[1a#]
[6#]
[Apples(5c)#]
[1a#]
[1a#]
|
|
[7#]
[giraffe(1)#]
[2#]
|
[7#]
[midterm(3)#]
[3#]
[ammonia(6)#]
[9#]
[3#]
[1#]
[1#]
[Chuck's eggs(2)#]
[Farmer's market(6)#]
[eggs(9)#]
[energy(9)#]
[9c#]
[2#]
[5ac#]
[5#]
[Smashing Squash(3c)#]
[4c#]
[Lottery(3)#]
[Kalamazoo(6)#]
[MMM(7)#]
[gloves(6)#]
|
|
|
[1#]
[2#]
[1#]
[2c#]
[1#]
[1#]
[#Math105Fun(1d)#]
[2#]
[6c#]
[4e#]
|
|
[1#]
[3#]
[1#]
[computer memory(8)#]
[4#]
|
[3#]
[salmon(9)#]
[3#]
[1#]
[4#]
[4#]
[1#]
[8#]
[1#]
[5#]
[3#]
[8#]
[5#]
[1#]
[9#]
[2b#]
[4#]
[3#]
[5a#]
[1#]
[Smashing Squash(3)#]
[Neverclear (4)#]
[Emergency Kittens(5)#]
[1#]
[4ac#]
[1#]
[2#]
[1#]
[3#]
[3a#]
[Kalamazoo(6a)#]
[1d#]
[1d#]
[1#]
|
|
[4#]
[quinoa(2)#]
[browsers(3)#]
[karat rating(8)#]
[computer memory(8)#]
[garment(9)#]
[3#]
[anthill(9)#]
|
[helmets(2)#]
[frogs(4)#]
[midterm(3)#]
[coffee(5)#]
[recycling(7)#]
[apples(2)#]
[pool(3)#]
[6#]
[5#]
[corn cobs(6)#]
[8#]
[Running routine(5)#]
[Mealworm(7)#]
[ants(1d)#]
[time travel(6)#]
[dress shop(3)#]
[trading cards(5)#]
[bread(6)#]
[3#]
[5b#]
[4#]
[6c#]
[Neverclear (4c)#]
[Emergency Kittens(5bc)#]
[3#]
[4#]
[2c#]
[5#]
[3#]
[4#]
[Mass Spring(5a)#]
[3cde#]
[Apples(5a)#]
[Kalamazoo(6c)#]
[6#]
[K pop(3)#]
[water bill(6a)#]
[memory(3)#]
|
|
[5#]
[4#]
[dolphins(7)#]
[2#]
[brick(4)#]
[6#]
[2#]
[kangaroo(5)#]
|
[9#]
[house(10)#]
[ski jump(4)#]
[painkiller(5)#]
[supermarket(7)#]
[cannon(8)#]
[socks(9)#]
[CATS(5)#]
[interview(8)#]
[advertising(8)#]
[4#]
[7#]
[2#]
[corn cobs(6)#]
[9#]
[10#]
[Yacht(4)#]
[9#]
[2#]
[jetpack(8)#]
[particles(7)#]
[8a#]
[10ab#]
[ski jumping(8)#]
[4b#]
[3ab#]
[1c#]
[5#]
[5#]
[7#]
[3#]
[tank(2)#]
[6a#]
[ATT(4)#]
[Leena(5)#]
|
|
|
[Mealworm(7)#]
[2#]
[7#]
[1#]
[Neverclear (4)#]
[7#]
[#Math105Fun(1c)#]
[5#]
|
|
[6#]
[ozone(4)#]
[tamarin(5)#]
[internet users(6)#]
[3#]
[groundhogs(6)#]
[2#]
[farms(5)#]
[bacteria(3)#]
[medication(9)#]
[anthill(9)#]
[Beaver(3)#]
[earthworms(7)#]
[mice(9)#]
|
[frogs(4)#]
[fruit flies(6)#]
[video(7)#]
[6#]
[bowl of soup(3)#]
[pesticide(5)#]
[2#]
[frogs and butterflies(6)#]
[ammonia(7)#]
[fruit flies(3)#]
[CATS(5)#]
[ammonia(6)#]
[2#]
[shrimp(3)#]
[1#]
[coal power(5)#]
[car(7)#]
[2#]
[corn and apples(3)#]
[deposit(8)#]
[3#]
[5#]
[8#]
[sanctuary(3)#]
[2#]
[strawberry picking(7)#]
[9#]
[10#]
[bees(2)#]
[pizza(7)#]
[lasagna(8)#]
[Mealworm(7)#]
[9#]
[cockroaches(2)#]
[TV dinner(3)#]
[frisbee(3)#]
[algae(4)#]
[5ac#]
[Isotope Z(6)#]
[2#]
[investing(5)#]
[8b#]
[10a#]
[cave painting(1)#]
[5b#]
[ExpCoin(4)#]
[7bd#]
[3d#]
[cryptozoology(4)#]
[Pie co.(6)#]
[3cd#]
[6#]
[1b#]
[Neverclear (4bc)#]
[Billy Corgi(5)#]
[6#]
[2#]
[bacteria colonies(3)#]
[4#]
[viral video(6bcd)#]
[4#]
[7b#]
[power outage(3)#]
[crickets(6)#]
[#Math105Fun(1b)#]
[4#]
[3#]
[snakes(5)#]
[6b#]
[lumens(2)#]
[4a#]
[air conditioner(5c)#]
[6d#]
[Detroit(2abd)#]
[7abd#]
[2bc#]
[2#]
[souffles(5)#]
|
|
|
[2#]
[8#]
[5c#]
[3cd#]
[1#]
[6#]
|
|
[2#]
[browsers(3)#]
[karat rating(8)#]
[rabbit(8)#]
|
[chlorine(6)#]
[1#]
[apples(2)#]
[1#]
[pool(3)#]
[3#]
[6#]
[3#]
[ants(1a)#]
[temperature(4)#]
[1#]
[10#]
[2ab#]
[Emergency Kittens(5a)#]
[4b#]
[6a#]
[2a#]
|
|
|
[2#]
[1#]
[2#]
[3#]
[Emergency Kittens(5)#]
[6#]
[2#]
|
|
[7#]
[eggs(6)#]
|
[rockets(5)#]
[icecube(8)#]
[7#]
|
|
|
[7bc#]
[6bc#]
[3#]
|
|
[1#]
[2#]
[ozone(4)#]
[pitch(7)#]
[2#]
[3#]
[groundhogs(6)#]
[earthquake(8)#]
[7#]
[medication(9)#]
[NPR(10)#]
[Beaver(3)#]
[6#]
[earthworms(7)#]
[mice(9)#]
[Llama(10)#]
|
[2#]
[spanish(5)#]
[fruit flies(6)#]
[video(7)#]
[bowl of soup(3)#]
[Richter(8)#]
[9#]
[ammonia(7)#]
[8#]
[antivirus(9)#]
[2#]
[shrimp(3)#]
[M scale(4)#]
[7#]
[2#]
[corn and apples(3)#]
[Lexicor(4)#]
[deposit(8)#]
[1#]
[sanctuary(3)#]
[tin medal(5)#]
[7#]
[Twissell(8)#]
[bees(2)#]
[pH(4)#]
[pizza(7)#]
[lasagna(8)#]
[1#]
[cockroaches(2)#]
[TV dinner(3)#]
[1#]
[time machine(4a)#]
[time machine(5)#]
[Isotope Z(6b)#]
[cave painting(1)#]
[3#]
[earthquakes(4)#]
[3c#]
[cryptozoology(4d)#]
[6a#]
[asteroid(8)#]
[1b#]
[Billy Corgi(5c)#]
[2#]
[bacteria colonies(3c)#]
[power outage(3ac)#]
[7#]
[1#]
[3df#]
[lumens(2)#]
[air conditioner(5)#]
[air conditioner(5b)#]
[6bc#]
[3b#]
[7cd#]
[6b#]
|
|
|
[time travel(6ab)#]
[dress shop(3)#]
[bread(6)#]
[2#]
[3#]
[5bc#]
[4#]
[5c#]
[Emergency Kittens(5c)#]
[1b#]
[2#]
[3#]
[4d#]
[1c#]
[Spot(4a)#]
[1b#]
[4cd#]
[3#]
[memory(3acd)#]
|
|
[7#]
[2#]
[7#]
|
[7#]
[2#]
[9#]
[1#]
[1#]
[jetpack(8a)#]
[2#]
[2#]
[Lottery(3a)#]
[6#]
[4#]
[Apples(5b)#]
[3#]
[5#]
[4#]
|