Science LvL2 Review 1

Science LvL2 Review 1

by Kidzone Center

C​lass Rules!

Be quiet​!

​C​lass Rules!

​Listen to teacher

​Raise your hand

​What is this?

What is it used for?

Multiple Choice

What do we use on a hot day?

Multiple Choice

What do we use to watch movie?

Multiple Choice

What do we use to keep food?

Multiple Choice

What do we use to keep our homes clean?

​Technology is created by humans. It makes our life be easier and solves problems.

​

​

Some technologies use electricity to work. 

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​

Some technologies use motor to work. 

​

​Which is technology?

​How does a Light Bulb work?

​We use a switch to turn on the light

​step 1

​Electricity runs in wires

​step 2

​Can we see it?

​Electricity makes the bulb light.

​step 3

​Can we see it?

​What can you do to save electricity at home?

​turn off the light when you don't need it

​turn off a TV when you don't need it

​turn off a fan when you don't need it

​To transport means to carry people and things from one place to another

How can we transport things?

​Wheel

​Wheels made things easier to move.

​

​What shape should wheels be?

​What are the aircrafts for?

Multiple Choice

Helicopters need to save people

Multiple Choice

Airplanes CAN'T transport people and things

Multiple Choice

Hot air balloons need to

• Save people

• Trasport things

• Enjoy the view

​How do the airplanes fly?

​Airplane wings have special shape.

The air moves slower under the wing and faster above the wing. This makes airplane stay in the air

​Airplane engine pushes the airplane forward

​Traffic lights

​What colors are used on traffic lights and what do they mean?

 

​Who needs to pay attention to traffic lights?

Traffic Safety - Quiz

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Multiple Choice

Pedestrians need to pay attention to traffic lights!

Multiple Choice

Drivers don't need to pay attention to traffic lights!

​Water can be....

​Salty

Fresh

​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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​What is Dead Sea?

Multiple Choice

Is Dead sea a sea?

Multiple Choice

Do animals or plants live in the Dead Sea?

Multiple Choice

Can we swim in Dead sea?

Multiple Choice

Why doesn’t anything live in the Dead Sea?

• It's very fresh

• It's very deep

• It's very salty

​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.

​Lake Baikal is the biggest freshwater lake in the world.

​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!

​The ball will float because it has air inside

​Full bottle

​Half-full bottle

​Empty bottle

​Which one will float?

Which one will sink?

​1

​2

​3

PYL - Science & Technology - L1.2 - Group sort

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​The matter is everything has shape

and has weight

​What are 3 states of matter?

​What can be solid liquid and gas?

​Water can be in 3 states.

​What is a matter made of?

​Matter is made of

molecules. Molecules are very small and we can't see them.

​Molecule

​Are humans made of molecules?

​Yes, you are!

​

​Humans are made of molecules!

​Solid

Liquid

Gas

​Are the molecules different in the different states?

​Atom

• ​Molecules are made of atoms.

• ​Atom is the smallest thing.

• ​Everything is made of atoms!

Multiple Choice

molecules are made of atoms

Multiple Choice

there are NO atoms in solid

Multiple Choice

Atoms made of molecules