ROCK POOLSROCK POOLS

By Emily andBy Emily and

MathildaMathilda

What is a rock pool?What is a rock pool?

Rock pools are places by the beach Rock pools are places by the beach where there are rocks that have a where there are rocks that have a hollow filled with sea water (salt hollow filled with sea water (salt water) sea weed and sea animals.water) sea weed and sea animals.

A diagram of a rock pool:A diagram of a rock pool:

What a rock pool meansWhat a rock pool means

It’s aIt’s a fun place to visit and to look for lots of animals made fun place to visit and to look for lots of animals made up with rocks and water.up with rocks and water.

Picture of wavesPicture of waves

Where doesWhere does rockrock pool waterpool water comecome from?from?Rock pool water comes from Rock pool water comes from the sea.the sea.

when the tide goes out the when the tide goes out the water from the sea becomes water from the sea becomes trapped between the rocks trapped between the rocks

And forms a rock pool. Some And forms a rock pool. Some are deep and large others are are deep and large others are small and shallow.small and shallow.

Where does rock pool Where does rock pool water go.water go.

when there is a high when there is a high tide coming in rock pool tide coming in rock pool water can wash back water can wash back into the ocean.into the ocean.

What lives in rock pool.What lives in rock pool.

Some of the things in rock pools are:Some of the things in rock pools are: Sea horsesSea horses Baby Blue-ringed octopusBaby Blue-ringed octopus ShrimpShrimp CowfishCowfish Hermit crab Hermit crab Sea starSea star And lots moreAnd lots more

Is it stable?Is it stable?

No. because as the tide comes in No. because as the tide comes in and then it changes the old water to and then it changes the old water to new water. some animals also get new water. some animals also get washed out or come in.washed out or come in.

Is it Threatened?Is it Threatened?

Yes. It is Threatened because Yes. It is Threatened because there is pollution is in the air, on there is pollution is in the air, on the ground and in the water. Also the ground and in the water. Also people step in them and collect people step in them and collect things from them because, they things from them because, they think it’s nice.think it’s nice.

What Do the plants and animals needWhat Do the plants and animals need

the plants and animals need:the plants and animals need: Salt WaterSalt Water Food like some other animals and seaweed.Food like some other animals and seaweed.

Habitat- rocks and places to hideHabitat- rocks and places to hide

Sea weedSea weed

Carpet starCarpet star

Carpet stars are brightly colored Carpet stars are brightly colored with red, orange, brown, green with red, orange, brown, green or blue on the top, and like to eat or blue on the top, and like to eat sea urchins. sea urchins.

Sea stars live in rocky shores of Sea stars live in rocky shores of Eastern and Southern Australia. Eastern and Southern Australia. They can be found in rock pools.They can be found in rock pools.

Other informationOther information Twice a day, the water rises and goes Twice a day, the water rises and goes

down again. The tides are caused by the down again. The tides are caused by the pull from the gravity of the Moon and the pull from the gravity of the Moon and the Sun. Gravitation keeps the planets in orbit Sun. Gravitation keeps the planets in orbit about the Sun.about the Sun.

High tideHigh tide

When the Sun and the Moon are When the Sun and the Moon are lined up with the Earth, they lined up with the Earth, they have a great gravitational pull on have a great gravitational pull on the Earth. When this happens, it the Earth. When this happens, it causes the water to be pulled causes the water to be pulled away from the Earth.away from the Earth.

Low tideLow tide

When your area is not lined up with the When your area is not lined up with the Moon, you will have low tides. The low Moon, you will have low tides. The low spring tides are usually the best for spring tides are usually the best for exploring.exploring.

low tidelow tide

BibliographyBibliography

The places we got our information are:The places we got our information are: Life in a Rock Pool Life in a Rock Pool by Greg Pyersby Greg Pyers Exploring Rock Pools Exploring Rock Pools by Ron Thomasby Ron Thomas A Rock Pool on the Sea ShoreA Rock Pool on the Sea Shore by Sally by Sally

MorganMorgan www.gould.org.au/rockpool.tmwww.gould.org.au/rockpool.tm Australia museum online-wild kids Australia museum online-wild kids

www.amonline.net.au/wildkids/coasts.cfmwww.amonline.net.au/wildkids/coasts.cfm