Grammar correction for a 6-year-old: "The biggest land animal, the elephant, uses its trunk like a hand."

Correct sentence:

The biggest land animal, the elephant, uses its trunk like a hand.

Or a simpler way to say it:

Elephants are the biggest land animals. They use their trunks like hands.

1. Start with a capital letter: "The" at the beginning, not all capitals like "ELEPHANT."
2. Use "the" before "elephant" when you mean that animal in general: "the elephant."
3. The comma is okay here because it adds extra information about which animal.
4. If you talk about more than one, use plurals: "Elephants... their trunks..."

Nice work — your idea was great! Try writing a few more sentences this way.