https://www.youtube.com/watch?v=VWTN82n30d4

https://www.youtube.com/watch?v=VWTN82n30d4

https://www.youtube.com/watch?v=VWTN82n30d4

https://www.google.pt/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjZ69mK9tnJAhUKWxoKHYRFAmwQtwIIHTAA&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DKqd57MbpIWQ&usg=AFQjCNHRzlSXkvtu30Y5qYDwwx1lCEPUqg&sig2=yQVvzLdn2kswBj3ll9eN2Q&bvm=bv.109910813,d.ZWU

 

Gravidade:

https://www.google.pt/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0ahUKEwjZ69mK9tnJAhUKWxoKHYRFAmwQFggmMAM&url=http%3A%2F%2Fwww.nova-acropole.pt%2Fa_newton.html&usg=AFQjCNEes9g02DTGsIe

_C_werJAxFx-KyQ&sig2=Jkhk1qMDFJM2KDpW-SlgAA&bvm=bv.109910813,d.ZWU

 

 

 

Os planetas -

https://www.google.pt/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwip9Pmx9tnJAhXLvBoKHf2RAsAQtwIIHTAA&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D904StxyJj7A&usg=AFQjCNFi25hnkKuhYGweCH-TrC97q23Jtg&sig2=lKBJdj7v-2HA4QPrZ_t-bg&bvm=bv.109910813,d.ZWU

​

A reciclagem:

https://www.youtube.com/watch?v=aY6oUbgmCkk

https://www.youtube.com/watch?v=IuNRsdNDm2w

​

Rótulos de simbolos perigosos:

https://www.youtube.com/watch?v=O8706uGdMVk

​

Acerto de equações químicas:

https://www.youtube.com/watch?v=9WLTClGZxRE

​

Átomos,moléculas e iões:

https://www.youtube.com/watch?v=BtcWhqjGeb8

​

Modelos atómicos:

https://www.youtube.com/watch?v=4xslnYKQaYg&t=2s

​

Eletrólise:

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

​

https://www.youtube.com/watch?v=SfhGbCjHA3w

​

​https://www.youtube.com/watch?v=BLv_O7DuI4U&t=17s