Year Four

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4LJ Investigate Rock Salt.

Date: March 4, 2013 Author: Ms Jarvis Categories: Year Four 0

This week 4LJ have been investigating rock salt. In groups we conducted experiments to see who could extract the most salt.

Freja, Annie, Amy and Sophie waiting for the salt water to filter through.

Freja, Annie, Amy and Sophie are waiting for the salt water to filter through.

There were quite a few stages to our experiment – Firstly we have to sieve the rock salt then we added water to dissolve the salt. Next we filtered the mixture through filter paper and finally we left the salty water, in a Petri dish, over the weekend. We are all looking forward to seeing what will happen next!

We need to get rid off all the big bits.

We need to get rid of all the big bits.

This bit took ages!

This bit took ages!

The water was dirty so we're going to try again.

The water was dirty so we’re going to try again.

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