NATURAL SCIENCE - 4th GRADE:
NATURAL SCIENCE - YEAR 4
UNIT: ENERGY AND MACHINES
LESSON: TECHNOLOGY AND MACHINES
And we will start our lesson doing this Unit's song... Here we go!
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Let's think of two different things that are helping us or making things easy for us in our classroom ... For example... A sharpener... And the projector... Can you tell me what is the same and different between this two things?
Well, they are the same because they are machines.
But they are also different... We use them for different things... And the type of energy that they need is different too...
What type of energy does your sharpener need to work? Well... It needs mechanical energy.
And what type of energy does the projector need?... It needs electrical energy.
Well... We can also say that both machines are the same because they are TECHNOLOGY... But... What is technology? Take a look at this video that will help you to understand it:
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And this is your lesson's summary:
Now check out the Unit's glossary and some interactive activities that will help you on this lesson:
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