Gr 4 4th Summative SCIENCE Living Things in their Environment

An organism cannot survive on its own. It depends on nonliving components in its environment.

It is the essential component of life. Lack of or limited supply of this would cause death of living things.

• water

• soil

• sunlight

It provides support and supply of nutrients for plants and serves as habitat for many animals and other organisms

• water

• soil

• sunlight

It is the main source of energy of most organisms.

• water

• soil

• sunlight

It can limit the kind of organisms that can thrive in a desert.

• temperature

• air

• water

It is needed for respiration of animals and plants.

• temperature

• air

• water

In managing your resources, this refers to the use of natural resources by turning off electric appliances that are not in use.

• reduce

• reuse

• recycle

In managing your resources, this refers to materials such as plastic containters to be used again.

• reduce

• reuse

• recycle

In managing your resources, this refers to old materials that can be made into something new and useful.

• reduce

• reuse

• recycle

What do you call the over-enrichment of water that may lead to algal bloom or rapid growth of algae in the water.