OIC4_Midterm 1_Revision

This sea animal has a long body and ten arms around its mouth. It shoots out ink when people or other animals scare it. What is it?

• an octopus

• a squid

• a leafy sea dragon

This tube-shaped equipment can make faraway things look closer and larger. People usually use it to see stars and other objects in space. What is this?

• a telescope

• a spacecraft

• a disk

These are large holes in the ground. You can see many of them on the moon after an asteroid hits the moon's surface. What are they?

• craters

• stars

• specks

This is a piece of rock from outer space that lands on Earth. It can be as big as a tennis ball, or as small as a marble. What is it?

• an asteroid

• a comet

• a meteorite

This is a large system in outer space. It includes a group of stars, gas, and dust. One example is the Milky Way. What is this?

• a universe

• a galaxy

• a solar system

This is a straight light going from one side to another side of a round object, passing through the center.

Scientists believe that astronaut _______(find) water on Ganymede one day.

If the sky _____(be) clear today, you will see a full Moon.

If he _____(not look) through the telescope, you will miss seeing Jupiter's moon.

What _____(happen) to people if there isn't water on Earth anymore?