Matching Pairs TestingOnline version Science by Jeff Saunders 1 Molecule A: Description A very common molecule on earth, this small molecule is only made of hydrogen and oxygen. The special structure of this molecule allows it to interact with other molecules in special ways. This molecule has unique properties that make it essential for life! A substance made of these molecules is liquid at room temperature. 2 Molecule B: Description Like water, this molecule is only made up of hydrogen and oxygen. Unlike water, it is very dangerous to consume. This molecule can have very dangerous reactions in the stomach if swallowed. A substance made of these molecules is liquid at room temperature. 3 Molecule G: Description This molecule and others like it are used to build proteins. Unlike other macronutrients, these molecules contain nitrogen, which helps give them their special properties. 4 Molecule C: Description This tasty molecule contains carbon, hydrogen, and oxygen. Its molecular structure gives it a popular taste and also allows the substance to dissolve in water. Its structure also allows the substance to form organized crystals, so on its own, this substance looks pretty and sparkly! 5 Molecule E: Description This molecule is similar to food molecules, but it is toxic in large quantities. Its molecular structure allows this substance to mix well with water. A substance made of these molecules is flammable and liquid at room temperature 6 Molecule F: Description This small molecule is a gas at room temperature due to its molecular structure. It is present in our atmosphere and is produced by animals, including humans. It is also produced when things burn. 7 Molecule D: Description This long molecule is a chain of carbons and hydrogens, with a few oxygen atoms at the end. Its molecular structure makes the substance liquid at room temperature and mixes well with fats and oils. The long molecules slip and slide past each other, making this substance very greasy and slippery! Due to its molecular structure, this substance cannot mix with water, but it can be eaten.
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