ex 2

What does "radar" mean?

• system that can find the position of objects which cannot be seen

• tool used to measure the dimensions of objects

• group of scientists

What does "suspicion" mean?

• feeling that something is impossible

• feeling that something may be true

• knowing that something happened

What does "scattered" mean?

• standing close to each other

• covering a wide area, disordered

• false, appearing to be true

What does "solid" mean?

• firm, stable in shape

• liquid, fluid

• valuable, worthy

What does "primitive" mean?

• highly developed

• the most important

• very basic

Earth is the only planet with the right ___________ for life.

• situation

• conditions

• context

The Moon is our planet's only ___________ satellite.

• natural

• real

• native

Saturn's rings are scattered ___________ of rock and ice.

• bits

• scraps

• pieces

Scientists believe Europa may support some life ___________.

• forms

• shapes

• structures

The name "Mars" was borrowed ___________ the Roman god of war.

• by

• from

• of