We became mad scientists for the afternoon, armed with a water jug, hammer and freezer we discovered that if we want to make something to bury, like a time capsule, we will need to choose the material carefully.

 To test if our materials were shockproof we hit them five times with a hammer.

To see whether a material is frostproof we put it in the freezer. We will look at it again on Monday to see the results. I wonder what we will observe?

We poured water over all of the materials to see whether they were waterproof or absorbent. 

Can we explain what these words mean at home?