STRUCTURES

 

Structures need to be strong and stable.

Unstable vs stable

VOCABULARY

COMPLEX MACHINES

 

Complex machines are made of different simple machines.

EXAMPLES

Bike

Scissors

Wheelbarrow

Stapler

Fishing rod

We use complex machines every day. They've got different uses.

AT HOME

Fridge

TV

Washing machine

Some complex machines need electricity to work. Other complex machines get energy from batteries or from people.

Bikes need energy from people.

Computers need electricty

Remote control

A torch needs batteries.


MACHINES THAT NEED ENERGY FROM BATTERIES

Remote control

Lego WeDo 2.0.

ENERGY FROM PEOPLE

Hammer

Knife

ENERGY FROM ELECTRICITY

Drill

Oven

Microwave

VOCABULARY

TIME TO PLAY!

SIMPLE MACHINES

 

Simple machines helps us with our work. There are six simple machines.

WEDGE

You use me to cut food in the kitchen.

Wedge

Wedge

WHEEL AND AXE

You can find me on doors.

Door knob

Wheel

Wheel

LEVER

Lever

Lever

INCLINED PLANE

You use me to go up and down.

SCREW

PULLEY

VOCABULARY

TIME TO PLAY!