Aquatic Ecosystems
What is an ecosystem?
What is the difference between aquatic and terrestrial ecosystems?
Aquatic ecosystems are located in water. Terrestrial ecosystems are located on land.
What is biodiversity?
What are the 4 way we can protect ecosystems?
What happens to a species when extinction occurs around the whole world?
The species disappears forever.
What factors affect aquatic ecosystems?
Sunlight, temperature, and the amount of salt.
What factors affect terrestrial ecosystems?
Temperature, humidity, relief, and soil.
What are the most biodiverse ecosystems?
Rainforests and coral reefs.
How can we save water?
By taking short showers instead of baths.
By turning off the tap while brushing our teeth.
How are coast and open sea ecosystems different?
Coasts are shallow and have multicellular algae.
Open seas are deep and have unicellular algae.
How are freshwater ecosystems classifed?
By having very little salt and by the movement of the water.
Where on Earth is the temperature highest?
The Equator.
What are 4 benefits of biodiversity for people?
Provides raw materials and food.
Provides energy sources.
Helps regulate humidity and keep water clean.
Is a source of fun and enjoyment.
How can we save energy?
By using energy-saving devices and public transport.
What is the main difference between flowing water and still water ecosystems?
In flowing water ecosystems, the water moves fast.
In still water ecosystems, the water doesn't move very much.
How are saltwater ecosystems classified?
By having a lot of salt and by the amount of sunlight.
What covers the surface of the Earth?
Rock.
What is extinction?
The disappearance of a species.
How can we recycle waste?
By sorting our rubbish into different types.
By putting each type in its recycling bin.
What are basalt rocks formed from?
What are 2 examples of each type of aquatic ecosystem?
Freshwater ecosystems: flowing water and still water
Saltwater ecosystems: coasts and open sea
Humidity is defined by the amount of rain in an area.
Relief is the shape of the land.
Soil is the layer of ground where plants grow roots.
What are the main causes of extinction?
Destruction, pollution, hunting and overfishing.
How can we respect nature?
By not damaging animals or plants.
By not leaving rubbish or lighting fires.
How do the authorities protect ecosystems?
By collecting waste for recycling.
By preventing and fighting forest fires.
By identifying endangered species and creating protections for them.
By creating protected areas for important ecosystems.