Why Do Frogs Croak? | A2 ESL Science Reading Passage

Use this A2-B1 ESL science reading passage to learn why frogs croak. It includes key vocabulary, reading comprehension questions, and answers for English learners.

Frogs croak to communicate with other frogs.

Reading Level

A2-B1

Word Count

204 words

Reading Passage

Frogs make many sounds. One common sound is a croak. Frogs do not croak just to make noise. Their calls help them communicate.

Many frog calls come from male frogs. A male frog may croak to find a mate. The sound tells female frogs where he is. A loud call can travel across a pond or wet field.

Frogs may also croak to mark territory. A frog's call can tell other males, "This place is taken." This can help frogs avoid fights.

Some frogs have a soft throat sac. When the frog pushes air into this sac, it gets bigger like a small balloon. The sac helps make the call louder. This is useful because frogs are often small animals.

Frogs often croak at night. Night can be safer and cooler. Many frogs are also active after rain because wet places help them stay moist. A rainy evening near a pond can be full of frog sounds.

Not all frogs sound the same. Some calls are deep. Some are high. Some are short, and some repeat many times. Different kinds of frogs have different calls.

Frog croaks are part of nature's language. They help frogs find mates, protect space, and live in wet places.

Frog calls can help with mates, territory, night activity, and different messages.

Key Vocabulary

Word	Meaning	Example
croak	a deep sound made by a frog	We heard a frog croak near the pond.
mate	an animal partner for having young	The frog called to find a mate.
territory	an area that an animal uses and protects	The frog used its call to mark territory.
throat sac	a soft part of a frog's throat that fills with air	The throat sac made the call louder.
moist	slightly wet	Frogs need moist places to stay healthy.

Reading Comprehension Questions

1. Why do frogs croak?
2. Why might a male frog call loudly?
3. What can a frog's call tell other males?
4. How does a throat sac help a frog?
5. When do frogs often croak?

Answers

1. Frogs croak to communicate.
2. He may call loudly to find a mate.
3. It can tell other males that a place is taken.
4. The throat sac helps make the call louder.
5. Frogs often croak at night or after rain.

Short Summary

Frogs croak to communicate. Their calls can help them find mates, mark territory, and stay active in wet places.

More Easy Readings

• How Do Ants Find Food? | A2 ESL Science Reading Passage
• What Makes Thunder? | A2 ESL Science Reading Passage
• What Is the Water Cycle? | A2 ESL Science Reading Passage