C​lass Rules!

Be quiet​!

​C​lass Rules!

​Listen to teacher

​Raise your hand

​Water can be....

​Salty

Fresh

​How much water is on the Earth?

​Water covers 71% of the Earth.

​water

​Land

97% of water is salty water

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3% of water is fresh water

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​Dead Sea

​Dead sea is the name of the lake

​Dead Sea is 9 times saltier than oceans

​9

​Dead Sea

​Dead sea is very salty.

No animals can live there.

​Dead sea is very salty.

We can't swim there.

We can only float.

​Some things can float and some things can sink. Why?

​Sink

Float

​The light things will float and heavy things will sink

​Buoyancy

​If things are light buoyant force pushes them up!

​If things are heavy they will sink.

​Sink or Float?

​A jar made of glass. It will sink

​A lid made of plastic. It will float

​A nail made of metal. It will sink

​A pencil made of wood. It will float

​A fabric is light It will float

​A stone is heavy. It will sink

​Hello, My name is ...

Today, I will tell you about ....

​

​Some things can float and some things can sink.

​The light things will ____ and heavy things will ____.

​​A nail made of metal. It will ___

​

​A stone is heavy. It will ___

​

​A fabric is light It will ____

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​A pencil made of wood. It will ___

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​A lid made of plastic. It will ___