Power plant use fresh water to generate electricity.

Manufacturing Industries cannot manufacture goods without fresh water.

Cars and other vehicles does not need water for their engines.

What are some ways on how to be a water-smart child?

turning from liquid state to a gas state or water vapor

In EVAPORATION, HEAT is needed and speeds up the process.

In EVAPORATION, greater surface area speeds up the process.

In EVAPORATION, greater surface area prolong the process.

Less humid air evaporates quicker.

Gas or water vapor turning to liquid

Occurs when water vapor touches a cool surface.

Clouds form during _____

Rain, Snow, Sleet, Hail

Water flowing on the surface of the land

SURFACE RUNOFF IS MORE LIKELY TO OCCUR WHEN…

Water on a steep slope is moving faster. It is moving so fast it will RUNOFF instead of absorb into the ground.

SURFACE RUNOFF IS MORE LIKELY TO OCCUR IN...

URBAN AREAS HAVE A LOT OF CONCRETE. WATER CANNOT ABSORB INTO CONCRETE. IT HAS TO RUNOFF.

SURFACE RUNOFF IS MORE LIKELY TO OCCUR IN...

Dense vegetation slows the water allowing it to absorb into the soil. Sparse vegetation allows the water to move more freely making surface runoff more likely.

SURFACE RUNOFF IS MORE LIKELY TO OCCUR IN...

(Porous means able to absorb fluid)

SURFACE RUNOFF IS MORE LIKELY TO OCCUR IN...

SURFACE RUNOFF IS MORE LIKELY TO OCCUR DURING A...

If the rainfall is extremely intense, the surface runoff becomes a FLASH FLOOD

Surface Runoff is more likely to occur when the ground is FROZEN, water cannot seep into the frozen ground, because ICE often causes the ground to be IMPERMEABLE.

Water on a gentle slope is moving slower. It is moving so

slowly it begins to absorb into the ground.

AGRICULTURAL AREA HAS A LOT OF CHURNED UP SOIL, WITH WHICH IT IS EASY FOR WATER TO ABSORB INTO… THUS, INFILTRATION OCCURS!!!

INFILTRATION IS MORE LIKELY TO OCCUR WHEN…

INFILTRATION IS MORE LIKELY TO OCCUR IN...

INFILTRATION IS MORE LIKELY TO OCCUR IN...

INFILTRATION IS MORE LIKELY TO OCCUR IN...

(Porous means able to absorb fluid)

INFILTRATION IS MORE LIKELY TO OCCUR IN...

INFILTRATION IS MORE LIKELY TO OCCUR DURING A...

During the winter, the stomata get very small.

Less transpiration occurs.

During the winter, the stomata get very small.

MORE transpiration occurs.

During the summer, the stomata get larger.

More transpiration occurs

During the summer, the stomata get larger.

LESS transpiration occurs

If you leave a hot drink on the table and wait for a while, does the drink heat up or cool off?

If you leave a cold drink on the same table and wait for a while, does the drink heat up or cool off?

The transfer of energy between objects that are different temperatures.

Expressed in joules and calories.

Varies with mass, specific heat capacity, and temperature change.

A measure of the average kinetic energy of the particles in a substance.

Expressed in Degrees Fahrenheit, Celsius, Kelvin.

Does not vary with the mass of an object.

The total kinetic energy of the particles in a substance.

Varies with mass and temperature.

The more jiggling, the ____ the temperature.

Energy flows “___”

When you ski, you go down, not up.

Thermal energy flows down a “___”

Flowing thermal energy is called ___.

It ALWAYS flows from hot to cold.

Three forms of heat transfer

____ is heat transfer within or between solid objects.

Heat transfer by DIRECT contact with the source of heat

Fluids (especially gases) are less conductive.

Conduction works best (most efficiently) when particles are in contact with each other

Since in solids particles are touching, transfer is quicker; in liquids and gases, particles are further apart so transfer by conduction is more difficult

Since in solids particles are touching, transfer is quicker; in liquids and gases, particles are further apart so transfer by conduction is LESS difficult

____ is heat transfer into or out of moving fluids.

Heat transfer that occurs due to the MOVEMENT of particles

Since particles MUST move for convection to take place, convection DOES NOT OCCUR in solids; it does occur in both liquids and gases

As water heats, the hotter water is less dense and rises while the colder water sinks, creating a current

As the air heats up, it rises; colder air then sinks.

Cooler, more dense, fluids SINK through

warmer, less dense fluids

warmer liquids and gases (less dense) ___.

Cooler liquids and gases (more dense) ___.

Freezer compartment is put at the top, because cool air sinks, so it cools the food on the way down.

___ is heat transfer due to packets of energy that can travel through many substances, including empty space.

Transfer of heat energy by electromagnetic waves

Can transfer heat through a medium OR through space

Waves transfer the energy to the object

Radiation travels in straight lines

Radiation can travel through a vacuum

Radiation requires particles to travel

Radiation travels at the speed of light

Particles vibrate and transfer energy from particle to particle

Heat transfer from molecule movement, due to density

differences

Example: cooking on a stove

Example: Hotter water moves to the top of a pot; cooler water falls

Travels through space and Does not need a medium (eg. Sunlight) but can travel through one

Example: space heaters

Which of the following is not a method of heat transfer?

In which of the following are the particles closest together?

Which is the best surface for reflecting heat radiation?

Which is the best surface for absorbing heat radiation?

The UAE has one of the highest water consumption levels in the world due to climate, population and income.

UAE residents use up to of w 550 litresater per day (international average is 170-300 per day, making it 82 per cent higher than the world average).