4th Grade4th Grade CA. StandardsCA. Standards: : 4 LS 3.a Students know 4 LS 3.a Students know ecosystems can be characterized ecosystems can be characterized by their living and non living by their living and non living components.components.

EcosystemsEcosystems

By: Lorena Jimenez

Living thingsLiving things + +

Non living thingsNon living things__________________________________EcosystemEcosystem

AAn n ecosystemecosystem is a is a community in nature, community in nature, including all its living and including all its living and non living parts.non living parts.

EcosystemsEcosystems are made up of are made up of biotic biotic (living) and (living) and abioticabiotic (nonliving) things. (nonliving) things.

BioBiotic: tic: biobio means living means living..

PlantsPlants AnimalsAnimals MicroorganismsMicroorganisms

AAbiotic: The prefix (biotic: The prefix (aa) means ) means notnot, , so abiotic means not living.so abiotic means not living.

TemperatureTemperatureSunlightSunlight SoilSoil WaterWater RainfallRainfall

Do you see any Do you see any biotic biotic (living)(living) or or abiotic abiotic (non(non living) things?living) things?BioticBiotic/living/living AbioticAbiotic /non living /non living

trees

grass

plants

soilwater

rocks

sunlight

How do How do bioticbiotic (living) and (living) and abioticabiotic (non (non living) things interact in the pond living) things interact in the pond

ecosystemecosystem?? Plants make their home in the soil.Plants make their home in the soil.

Birds use grasses to make nests.Birds use grasses to make nests.

Bacteria in the soil break down Bacteria in the soil break down leaves.leaves.Frogs catch insects in and around the Frogs catch insects in and around the pond.pond.

What makes What makes ecosystemsecosystems different?different?

The amount of waterThe amount of water

The amount of sunlight

The type of soil

Rainforest ecosystemRainforest ecosystem Its almost always Its almost always

raining.raining.

No direct sunlight.No direct sunlight.

Millions of plants and animals.Millions of plants and animals.

Generates oxygen. Generates oxygen.

7% of earth’ s surface.7% of earth’ s surface.

Desert EcosystemDesert EcosystemIt hardly ever rains in the desert.

There are little plants and animals.

Extreme temperatures.

Direct sunlight.

Ocean EcosystemOcean EcosystemMostly salt water.

70% of earth’s surface.

Home to thousands of plants and animals.

97% of earth’s water supply.

RememberRemember!!

EcosystemsEcosystems are made up of are made up of biobiotic tic (living) and (living) and aabiotic (non living) biotic (non living) things.things.

BioticBiotic factors: plants, animals, and factors: plants, animals, and microorganisms.microorganisms.

AbioticAbiotic factors: temperature, factors: temperature, sunlight, soil, water, and rainfall.sunlight, soil, water, and rainfall.

EcosystemEcosystem can have different: can have different: amounts of water and sun light and amounts of water and sun light and they can have different types of soil. they can have different types of soil.

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