What is reaction?

A reaction is when something changes because another thing happened to it, like when you mix two things together and they make a new one.

Imagine you have a cup of hot chocolate. You add sugar, and suddenly the drink tastes sweeter. That’s a kind of reaction, even though nothing looks different, just the taste changed. Or think about baking cookies: when you put them in the oven, the heat makes the dough turn into soft, gooey treats.

Let’s say you have two colors of playdough, red and blue. If you squish them together, you get purple. That’s a reaction too! The red and blue are like the things that change, and the purple is the new thing they made.

Sometimes reactions can be more exciting, like when you light a match. The matchstick changes from being still to burning bright because of the reaction between the match and the flame. It’s not magic; it’s just two things working together to make something new happen. A reaction is when something changes because another thing happened to it, like when you mix two things together and they make a new one.

Imagine you have a cup of hot chocolate. You add sugar, and suddenly the drink tastes sweeter. That’s a kind of reaction, even though nothing looks different, just the taste changed. Or think about baking cookies: when you put them in the oven, the heat makes the dough turn into soft, gooey treats.

Let’s say you have two colors of playdough, red and blue. If you squish them together, you get purple. That’s a reaction too! The red and blue are like the things that change, and the purple is the new thing they made.

Sometimes reactions can be more exciting, like when you light a match. The matchstick changes from being still to burning bright because of the reaction between the match and the flame. It’s not magic; it’s just two things working together to make something new happen.