Positive and negative

Aluminum can, charcoal and organic sea water x50 = battery. It’s cool but hard work and doesn’t work so well.

In tech we watched this amazingly-cool movie. It talked about batteries, lithium, climate change and even Samson phones and hoverboards lightning on fire.

They even showed some cool explosions and it was also educational and it talked about some scary things. He also interviewed lots of experts.

Some things he did were, he learned how to make a battery, he learned about lithium, which when put in water literally explodes, and he drove an old electric car.

In one part he went to a place where they did experiments to make the battery explode to see why it is set on fire. He also went to a place where he cuts and stabs a battery but it still doesn’t explode.

It is a amazing movie and really cool.

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