Number of combinations created in this step: 43

290. Monkeys = Banana + Mammals
291. Ornithopter = Birds + Incomplete Mechanism
292. Pencil = Black Lead + Wood
293. Ebonit = Caoutchouc + Sulfur
294. Rubber = Caoutchouc + Volcano
295. Cast Iron = Carbon + Iron
296. Dry Ice = Carbon Dioxide + Cold
297. Aerated Water = Carbon Dioxide + Water
298. Paper Factory = Cellulose + Incomplete Factory
299. Eggs = Chickens + Grains
300. Cotton Candy = Cotton Wool + Sugar
301. Yarn = Fiber + Fiber
302. Smoking Pipe = Fire + Tube
303. Sharks = Fish + Canines
304. Roses = Flowers + Needle
305. Spyglass = Glass + Tube
306. Village = House + House
307. Hydrocarbon = Hydrogen + Carbon
308. Jeans = Indigo + Cotton
309. Paint = Indigo + Water
310. Hedgehog = Insectivora + Needle
311. Wine = Juice + Fungi
312. Rope = Liana + Fiber
313. Domestic Animals = Mammals + House
314. Atomic Submarine = Nuclear Boiler + Submarine
315. Infected Animal = Panda + Viruses
316. Porcupines = Rodents + Needle
317. Cryogenic Scuba = Scuba + Dewar Flask
318. Soda = Sodium Hydroxide + Carbon Dioxide
319. Steam Engine = Steam + Incomplete Mechanism
320. Nuclear Power Station = Steam Turbine + Nuclear Boiler
321. Diamond = Stone + Carbon
322. Swamp Chickens = Swamp + Chickens
323. Saw = Tools + Canines
324. Conifers = Trees + Needle
325. Aardvark = Tube + Mammals
326. Tubing = Tube + Tube
327. Wheel = Wood + Incomplete Mechanism
328. ZnC Battery = Zinc + Carbon
329. Gun Powder = Carbon + Sulfur + Potassium Nitrate
330. Bakery = Flour + Stove + Incomplete Building
331. Forge = Stove + Anvil + Incomplete Building
332. Loom = Wood + Fiber + Tools