Vocabulary Practice UNIT 4

Choose the correct words to complete the paragraph below.

Is there life on other planets? Scientists use different methods to try to answer this question. Some use very powerful/whole radio telescopes. They hope to receive messages from intelligent life on distant planets. Other scientists only search/contact for life in our solar system. But they aren’t looking for intelligent life—they want to circle/identify any possible life forms. To do this, they test whether conditions on a planet would allow/contact any kind of life to exist/search.

Eg: a, b, c,...

We measure distance in ___.

• kilometers (km)

• kilograms (kg)

Some examples of tools are ___.

• monkeys and dolphins

• cell phones and laptops

If you contact someone, you ___ them.

• meet or communicate with

• research and write about

If you have lived in a place your whole life, you have lived there ___ of your life.

• some

• all

If a spaceship circles a planet, it ___ the planet.

• goes around

• lands on

Moon dust can be ___ful and can damage our DNA.

• care

• harm

• power

• wonder

Astronomers need to be very ___ful with the expensive equipment they use.

• care

• harm

• power

• wonder

The Falcon Heavy rocket is extremely ___ful. It can carry a load of 60,000 kg.

• care

• harm

• power

• wonder

___: able to live on one’s own

• independent

• surface

• environment

• neighbor

• mission