Grammar Check for Sentences About Plants for a 6-Year-Old

Let's look at your sentences carefully:

"Some plants save rainwater in their stems. Others use rain to bloom, if only for one day."

These sentences are almost perfect! Here is a small tip:

• In the first sentence, "save rainwater in their stems" is correct and clear.
• In the second sentence, the phrase "if only for one day" is fine, but you could also say "even if it's just for one day." This sounds a little more natural.

So a nice way to say it would be:

"Some plants save rainwater in their stems. Others use rain to bloom, even if it's just for one day."

This means that some plants keep rainwater, and others start to bloom after it rains, sometimes only for a short time.