What Am I?

The path goes up a green hill.

At the top, Tina finds a sign.

The sign has a new riddle on it.

"I am yellow, and I am very warm."

"I am high up in the blue sky."

"I come up early every morning."

"What am I? Please look up now."

Tina looks up at the bright sky.

"Something yellow and warm," she says.

"It is high in the sky each day."

Tim feels the warm light on his face.

"It is warm right now," he says.

"I think the answer is the sun!"

The sun is yellow and very warm.

The sun is high up in the sky.

It comes up early in the morning.

"Yes! The answer is the sun!" says Tina.

The sign turns and shows an arrow.

The arrow points to a small forest.

"Two riddles down!" the twins say together.

They walk toward the green forest happily.