ENGLISH 9 - UNIT 10 - VOCABULARY RIDDLES

quickly and suddenly (S______)

to arrive on the ground or other surface after moving down through the air

the natural environment in which an animal or plant usually lives

a person who has been trained for travelling in space

an important job, especially a military one, that someone is sent somewhere to do (M______)

an act of moving around in space outside a spacecraft but connected to it:

providing conditions that are good enough to live in or on (H_______)

height above sea level

an exciting entertainment in an amusement park, like a fast train that goes up and down very steep slopes and around very sudden bends

extremely small

a cylinder-shaped device for making objects that are far away look closer and larger, using a combination of lenses, or lenses and curved mirrors

to follow a curved path around a planet or star

to go or come down

a piece of rock or other matter from space that has landed on earth

a vehicle used for travel in space

everything that exists, especially all physical matter, including all the stars, planets, galaxies, etc. in space (U______)

very weak gravity (= the force that makes things fall to the ground), especially in a spacecraft orbiting (= going around) the earth:

to send something out, such as a new ship into the water or a spacecraft into space (L______)

the scientific study of the universe and of objects that exist naturally in space, such as the moon, the sun, planets, and stars

the force that makes objects fall toward the earth, or toward some other large object such as a planet or a star

a device sent up into space to travel around the earth, used for collecting information or communicating by radio, television, etc.