Unit 2, Lesson 1 - Space and ocean exploration

atmosphere (n.)

the layer of gases around the Earth

come across (phr. v.)

to discover something or meet someone by chance

exploration (n.)

the action of going around a place where you have never been in order to find out what is there

investigation (n.)

the action of trying to discover all the facts about something

launch (v.)

to send a spacecraft into the sky, or a ship into the water

monitor (v.)

to watch something carefully and record your observations

observe (v.)

to watch someone or something carefully

preserve (v.)

to keep something the same or prevent it from being damaged or destroyed

resources (n.)

something that a country, person, or organization has that they can use

satellite (n.)

a piece of equipment that is sent into space around the Earth to receive and send signals or to collect information

species (n.)

a group of plants or animals that share similar characteristics

surface (n.)

the top or outside part of something

use up (phr. v.)

to finish a supply of something