Volcanoes

This week we have been learning about volcanoes. As well as trying to remember they are found on the edges of the plates, we’ve been learning more new vocabulary – lava, magma, igneous rock.

Making a volcano

First, we did the old faithful, making a volcano from playdough and making it erupt. We used baking powder, red food colouring (or food poisoning as one of the students insisted on calling it!) and weak sulphuric acid.

IMG_0043

IMG_0134

Sadly, I can’t put the pictures of the students setting them off, but you get the idea.

We then looked at lava cooling into igneous rock, using an experiment adapted from ‘Edible rocks‘. I melted the chocolate on silver foil over a beaker of water – it scares me a little how few of my Y10 students seem to have had the opportunity to use bunsen burners in the past – there’s some work for another day! I did try melting the chocolate in boiling tubes, but they ended up in the bin as we couldn’t get the chocolate out! T tells me I’m a ‘failure teacher’!

We used chocolate chips, but these did not cool down particularly quickly, so we had to do the ‘look, the chocolate has set, the rocks have gone hard, the lava has become igneous rock’ at the start of the following lesson.

IMG_0087

Advertisements

1 Comment

Filed under School, Science

One response to “Volcanoes

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s