Tide Pools By: Brianna Pearson Description Tide pools are areas on rocks by the ocean that are...

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Tide Pools Tide Pools By: Brianna Pearson By: Brianna Pearson

Transcript of Tide Pools By: Brianna Pearson Description Tide pools are areas on rocks by the ocean that are...

Tide PoolsTide Pools

By: Brianna PearsonBy: Brianna Pearson

DescriptionDescription Tide pools are areas on rocks by the Tide pools are areas on rocks by the

ocean that are filled with seawater. ocean that are filled with seawater. Tide pools can be small, shallow Tide pools can be small, shallow puddles found high up on the shore or puddles found high up on the shore or huge, deep holes nearer to the sea. huge, deep holes nearer to the sea.

Tide pools form when the ocean Tide pools form when the ocean covers the beach twice a day. Some of covers the beach twice a day. Some of the plants and animals that live close the plants and animals that live close to the sea are covered when the tide to the sea are covered when the tide washes over them. washes over them.

They have to be able to survive in They have to be able to survive in both wet and dry conditions. The tides both wet and dry conditions. The tides bring fresh oxygen and food to them. bring fresh oxygen and food to them.

Between tides, some of the smaller Between tides, some of the smaller pools become too warm and begin to pools become too warm and begin to dry up. dry up.

Many of the animals hide under cool, Many of the animals hide under cool, damp rocks and moist seaweeds so damp rocks and moist seaweeds so that their bodies do not dry out before that their bodies do not dry out before the tide comes in again.the tide comes in again.

LocationsLocations

Tide pools occur Tide pools occur where ever the where ever the ocean meets the ocean meets the beach.beach.

And where the And where the water is trapped.water is trapped.

FormationFormation The tides on Earth are The tides on Earth are

strongly influenced, in strongly influenced, in addition to astronomical addition to astronomical factors, by the sizes, factors, by the sizes, boundaries, and depths of boundaries, and depths of ocean basins and inlets, and ocean basins and inlets, and by Earth's rotation, winds, and by Earth's rotation, winds, and barometric pressure barometric pressure fluctuations.fluctuations.

Although it is the gravitation Although it is the gravitation of the Moon and Sun that of the Moon and Sun that raises the tides, the energy in raises the tides, the energy in the churning waters is the churning waters is extracted from the rotational extracted from the rotational energy of Earth spinning on energy of Earth spinning on its axis.its axis.

Sea StarSea Star

A sea star has A sea star has hundreds of tube hundreds of tube feet under each feet under each arm. arm.

Each foot has a Each foot has a suction cup to grip suction cup to grip rocks. rocks.

If it loses an arm it If it loses an arm it will grow a new will grow a new one.one.

Hermit CrabHermit Crab

A hermit crab A hermit crab lives in a shell. lives in a shell.

When it grows too When it grows too big for one shell, big for one shell, it moves into a it moves into a bigger one. bigger one.

It uses it's huge It uses it's huge claw for hunting claw for hunting and fighting. and fighting.

Sea UrchinSea Urchin

Sea urchins are Sea urchins are different sizes, different sizes, shapes and colors. shapes and colors.

They all have They all have sharp spines to sharp spines to keep enemies keep enemies away. away.

They eat algae on They eat algae on the rocks.the rocks.

Sea SnailSea Snail

The shell of a sea The shell of a sea snail protects it snail protects it from the heat of from the heat of the sun and the sun and predators. predators.

During low tide During low tide the shell holds the shell holds cool water inside.cool water inside.

Rock CrabRock Crab The rock crab crawls The rock crab crawls

across the ocean across the ocean floor, using its claws floor, using its claws to pick up pieces of to pick up pieces of food. food.

It can also use its It can also use its pincers to defend pincers to defend itself if it's attacked. itself if it's attacked.

Most crabs are Most crabs are scavengers and will scavengers and will eat almost anything eat almost anything -- even other crabs. -- even other crabs.

High TideHigh Tide

                                                                              

When high tide When high tide occurs the waves occurs the waves are at their are at their farthest in shore. farthest in shore.

This is when the This is when the tide pools are tide pools are replenished with replenished with more animalsmore animals

Low TideLow Tide

When low tide When low tide occurs the water occurs the water level goes back level goes back out to sea. out to sea.

During this time, During this time, many animals many animals become trapped become trapped in what are called in what are called tide pools.tide pools.

The EndThe End