The term best relates to Ben's observation is Reaction Rate .
The rate at which a chemical reaction occurs is known as the reaction rate. It is either the quantity of product concentration in a unit of time or the amount of reactant concentration consumed in a unit of time.
When Ben observes how quickly some dry wood is burning in a campfire.
From this observation it can be understood that when the wood is dry the reaction rate of burning increased as more surface area for burning is created due to loss of moisture from the wood.
Therefore The term best relates to Ben's observation is Reaction Rate .
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