grade 5 , con 6

When ice is kept in a cold temperature, it..........

• turns into water.

• turns into steam.

• remains as it is.

• becomes unclear.

Ice changes from solid state to liquid state by increasing its...........

• length.

• mass.

• temperature.

• volume.

When particles of water absorbs light energy, they will..........

• move faster.

• vibrate slower.

• spin slower.

• become close together.

Which of the following matter particles are very close together?

• Oxygen gas.

• Water.

• Oil.

• Wood.

All the following happen to the particles of oil when it is heated, except that they..........

• spin around faster.

• move faster.

• vibrate less.

• vibrate faster.

Physical changes of matter include............

• melting only.

• freezing only.

• both melting and freezing.

• neither melting nor freezing.

Increasing the temperature of a matter means that its particles............

• have low energy.

• have high energy.

• have very low energy.

• don't have energy.

Ice is turned into ...........when its temperature is between 0°C and 100°C.

• solid state

• liquid state

• gas state

• water vapor

When the temperature of water is decreased below 0°C, it will turn into.........

• water vapor.

• clear water.

• colored water.

• ice.

To change water from solid state to liquid and then to gas state, we need to ..........the temperature.

• fix

• increase

• decrease

• reduce