Science G4

Three forths of the earth is covered by ...

• oceans

• lake

• river

• land

When a cloud is so low that it is at ground level, we call it ...

• fog

• surface

• water

What cloud that is very close to the earth's surface ...

• gases

• stratus

• water

A stratus cloud look like...

• curve and thick layer

• flat and thick layer

• like a blanket

A stratus cloud look like...

• curve and thick layer

• flat and thick layer

• like a blanket

Anything that takes up space and has weight....

• Matter

• Molecule

• Solid

the smallest piece of a substance that still has all the qualities of that substance.

• Matter

• Molecule

• Solid

Every water molecule is made of two atoms of ...... and

• N and O2

• CO2 and O2

• hydrogen and one atom of oxygen (H2O).

Matter that has no shape and does not fill up a certain amount of space....

• gas

• matter

• cloud

True or False. Molecules in gases are far apart and are the fastest moving molecules.

• True

• False