Water
What are the states of water?
liquid, solid, and gaseous.
What is air?
Air is a mixture of different gases.
Define weather.
Weather is the state of the atmosphere in a particular place and time.
What is the climate?
The climate is the weather that usually occurs in a place over several years.
What is air pollution?
Air pollution is the air that contains gases and harmful chemicals.
Water changes states when the _________.
temperature changes.
Living things breathe …
Oxygen
_________ have different shapes, sizes and colours.
Clouds
______________ shows wind direction.
Weather vane
Air can be polluted by natural or ____________ causes.
man-made
Define the following stages: Melting, Evaporation, Condensation, and Solidification.
Melting: water changes from solid to liquid.
Evaporation: water changes from liquid to gas.
Condensation: water changes from a gas to liquid.
Solidification: water changes from liquid to solid.
Which gas is the most abundant gas?
Nitrogen is the most abundant gas.
List three types of wind.
Breeze, Gale, and Hurricane.
List the climate zones.
Air pollution produces _______________________________.
illnesses, destroys plants, damages monuments and can change the climate.
What is the water cycle? How many water cycle stages are there?
The water cycle is the journey of water always moving around the Earth. The four stages are evaporation, condensation, precipitation, and collection.
List the properties of air.
-Air has no color, smell, and taste.
-Air has weight.
-Air occupies space.
What are atmospheric phenomena? What are the different types of atmospheric phenomena?
Atmospheric phenomena are the natural events that occur in the atmosphere.
Different types of atmospheric phenomena are wind, clouds, rain, snow, hail, rainbow and thunderstorms.
Describe the temperature in mountain zones, coastal zones and Inland zones.
Mountain zones: Temperature is lower. It snows a lot in winter.
Coastal zones: Temperature is warmer.
Inland zones: It does not rain very much.
List examples of air pollution.
- Fumes from cars
- Smoke from factories
- Volcanic eruption
- Smoke from coal and wood
Identify the four water cycle stages and explain them.
1. Evaporation: The Sun heats the oceans. Water evaporates to form water vapour.
2. Condensation: Water vapour passes into the cold air and condenses to form clouds.
3. Precipitation: Tiny droplets of water in clouds form large drops. They fall as rain, hail or snow.
4. Collection: Rain falls into rivers and returns to the sea. Some rain goes into the ground as groundwater.
Define the atmosphere, and troposphere.
The atmosphere is the layer of gases that surrounds the Earth.
The troposphere contains the air that we breathe.
What type of atmospheric phenomena do you see today?
Today's atmospheric phenomena are ...
What type of climate zone do you live in?
I live in a _____________ .
(Mountain, Coastal or Inland zones)
What can you do to reduce air pollution?
Recycle, use the car less, protect nature and use less electricity.