Listen to the lecture about a science experiment to practise and improve your listening skills.

Do the preparation task first. Then listen to the audio and do the exercises.


Language level

Upper intermediate: B2


Thank you!

So perfectionist I answered it all right but you marked it wrong

nice experience ! I enjoyed the story and also the process of self assessment. Thank you

A good article. I would suggest that glass is in fact a more viscous material than pitch.

Thank you

thank I enjoyed the story