Grammar check for a 7-year-old: "Hens lay eggs that hatch into chicks."

Yes — the sentence "Hens lay eggs that hatch into chicks." is grammatically correct.

Here is a simple, step-by-step explanation for a 7-year-old:

1. Who? "Hens" — this is the subject. It tells who the sentence is about.
2. What do they do? "lay" — this is the action (the verb). It tells what the hens do.
3. What? "eggs" — this is the thing the hens make.
4. Extra information: "that hatch into chicks" — this part tells more about the eggs. The word "that" starts a short clause (a group of words) that describes the eggs. It means the eggs become chicks.

So the sentence says: Hens make eggs, and those eggs become chicks. It uses the simple present tense ("lay" and "hatch"), which we use for things that usually happen.

Short alternatives you can say:

• "Some hens lay eggs that hatch into chicks." (This is true for some eggs.)
• "Hens sometimes lay eggs that hatch into chicks." (This shows it does not always happen.)
• "Hens lay eggs, and the eggs can hatch into chicks."

All of the above are correct. Good job noticing the sentence!