grade 5 , con 4 , lesson 3

By changing the ........of a matter, its state may change.

• mass

• volume

• color

• temperature

If water is exposed to high temperature, its particies will move ......... and the water may change into .....

• faster-ice.

• faster-water vapor.

• slower-ice.

• slower-water vapor.

We can use a model to study very large things such as.......

• solar system.

• germs.

• microbes.

• viruses.

By blowing up a balloon,.........

• its volume decreases.

• its volume increases.

• its color changes.

• its mass doesn't change.

To examine the structure of tiny particles of a matter, we can use a special type of.......

• microscopes.

• balances.

• thermometers.

• rulers.

Particles of ........vibrate around their places.

• glass

• air

• oxygen

• water

The movement of particles of water is slower than that of......

• wood.

• plastic.

• air.

• gold.

The liquid matter is characterized by all the following, except that ........

• its particles move faster than solid particies.

• its particles move slower than gas particies.

• its particles can slide over each other.

• its particles are held together more closely than solid particles

Germs are very large organisms that can be seen with the nacked eye

• True

• False

Air particles are visible as they are very large perticals

• True

• False