NATURAL SCIENCE - YEAR 4 - NEW UNIT: ENERGY AND MACHINES - LESSON: DISCOVERIES AND INVENTIONS + UNIT MIND MAP

 NATURAL SCIENCE

Unit: Energy and machines

LESSON: DISCOVERIES AND INVENTIONS + UNIT MIND MAP

We are going to start doing our Unit's song:

TODAY'S LESSON: DISCOVERIES AND INVENTIONS + UNIT MIND MAP

One question: How important is your computer for you?:

Not important at all - Somehow important - It is important - It is very important

Well... And how important is the screen  🖥 for your computer?

Not important at all - Somehow important - It is important - It is very important

Do you know how important light 💡 is for the screen of your computer... Or for the projector that we use in class?... Well it is very, VERY important... Because with no light... Your computer or the class projector would not work at all 😱!... 

So... The person that invented the light bulbs... Help the person who later invented the computers... It's like a chain... 

Inventors are really important... They have ideas that help the rest of the humanity to live better...

People started using their brain to invent interesting things a long time ago...

One of them was Archimedes... This video shows you his story:

Another one was Isaac Newton:

ON THIS LINK YOU WILL FIND INFORMATION ABOUT A VERY IMPORTANT WOMAN-INVESTIGATOR: MARIE CURIE

And finally... The inventor of the light bulb 💡... Thomas Edison!!:

This is your lesson's summary:

And this is your Unit's Mind map:

Interactives activities:

UNIT GLOSSARY

INVENTORS AND INVENTIONS

ARCHIMEDES AND NEWTON

ARCHIMEDES' AND NEWTON'S INVENTIONS

HOW SCIENTISTS INVENT AND DISCOVER

UNIT QUIZZ

NATURAL SCIENCE - YEAR 4 - NEW UNIT: ENERGY AND MACHINES - LESSON: COMPOUND MACHINES

 NATURAL SCIENCE

Unit: Energy and machines

LESSON: COMPOUND MACHINES

We are going to start doing our Unit's song:

TODAY'S LESSON:

COMPOUND MACHINES:

Let's remember the list of simple machines that we know...

The lever - The wheel and axle - The pulley - The inclined plane...

Now... Think about a bicycle... 🤔... What is is the difference between a bicycle and these other machines?

... Well the bicycle has more parts... That's why we call it a complex machine... There many more complex machines around us... Can you think of more examples?

Well... this next video gives you an explanation about compound machines and shows you some examples:

This is your lesson's summary:

Interactives activities:

COMPOUND MACHINES

AXELS, GEARS, BELTS AND CHAINS

COMBUSTION ENGINES

A COMPOUND MACHINE COMPONENTS

COMPONENTS WORK TOGETHER

NATURAL SCIENCE - YEAR 4 - NEW UNIT: ENERGY AND MACHINES - LESSON: SIMPLE MACHINES

 NATURAL SCIENCE

Unit: Energy and machines

LESSON: SIMPLE MACHINES

Let's start doing our Unit's song:

And we will start our lesson doing this Unit's song... Here we go!

TODAY'S LESSON:

SIMPLE MACHINES.

Simple machines make our life simple reducing the force we need to do something. Two examples of simple machines are THE WHEEL (probably the best invention in history) and THE LEVERS... There are 3 types of levers... These two videos give you an explanation:

And one more video talking about simple machines:

This is your lesson's summary:

Interactives activities:

INCLINED PLANE AND LEVER

PULLEYS

ROLLERS AND WHEELS

SIMPLE MACHINES