HMH Into Reading The Mariana Trench Vocabulary

A________ is a long, narrow groove or ditch.

• trench

• summit

The __________ of a mountain is its top or highest point.

• thrive

• summit

When living things ___________, they grow well and are healthy.

• thrive

• prehistoric

Something that is ___________ is very old, from a time before history was recorded.

• trench

• prehistoric

If something is __________, it is needed or very important.

• vital

• thrive

A __________ is a very quick look at something.

• remotely

• glimpse

If something is ________________, it can go or work under water.

• remotely

• submersible

If you use something __________, you control it from a distance.

• autonomous

• remotely

If something is ____________, it controls itself

• autonomous

• trench