4º NS Unit 6 – MACHINES AND ENERGY (SB page 91)

AND 

HOMEWORK:

1. Click on the links to watch the videos. The videos will help you understand the concepts.

2. Read and do the exercises of this page:

- SS Student´s Book (page 91)

3. Study the concepts.

LINKS:

IMPORTANT INVENTIONS AND DISCOVERIES

- FLEMING: penicillin

Part 1

https://www.youtube.com/watch?v=uvVEcMnFiz8

Part 2

https://www.youtube.com/watch?v=GCF0WOKFpnE

- PREHISTORY: wheel

https://www.youtube.com/watch?v=XzG1aPw7YBc

https://www.youtube.com/watch?v=DML24R1x3W0

- FARNSWORTH: first electric TV

https://www.youtube.com/watch?v=XA7b_M94vyQ

https://www.youtube.com/watch?v=0e5Tw1bhJuc

- ROENTGEN: X-ray

https://www.youtube.com/watch?v=k9EBoQQMODA

https://www.youtube.com/watch?v=Q_bxypxqAik

https://www.youtube.com/watch?v=gsV7SJDDCY4

- ANDERSON: windshield wipers

https://www.youtube.com/watch?v=jfZcanxVfOo

AND HAVE A GREAT DAY!