Primary five have started a new science topic all about energy. We are looking at renewable and non renewable energy. We found out that if we keep using up all the fossil fuels there will be none left! Imagine!

So we began to investigate renewable power. We started with solar power.

When we were looking at solar power we realised that the sun can be used in two ways.

Thermal panels can take in the Suns heat to warm water and air.

Sun Light can be gathered and turned into electricity by photovoltaic cells! Wow!

We made up information posters about this and even wrote an explanation about it!

We then decided to carry out an experiment. We decided to melt chocolate in the sun!

We had a few variables to test out.

Which melts faster milk or white chocolate?

Which plate speeds up the melting? Paper or tinfoil?

Is shade or sun best?

We discussed our results. Put them into a graph and came to conclusion.

Milk chocolate melts quicker than white chocolate because the dark colour absorbs heat. Tinfoil plates warmed up quicker and melted the chocolate much sooner. The sun was warmer than the shade!

What a tasty experiment!

We wonder what will come next!