Friday, 13 December 2013

Water Absorbency

As part of our current science unit on water, we had a lot of  fun testing the absorbency of different materials. 

I chose a range of papers and fabric from around the home and the children tried to predict whether the material would absorb the water or not.Then we poured 10 ml of water on each one, watched and waited,

and recorded the results in a table.

The children thoroughly enjoyed testing the absorbency of one of Elisabeth's disposable nappies. We were amazed to learn that it could hold 600 ml of water!

They had fun playing with water beads, which start off really tiny and expand in size when put in water.

We reminded ourselves of what we had learned in our spring project, about how plants absorb water through their roots, and they drew and labelled a flower and made note that plants need water, sunlight and soil to grow.

Whilst out on a lovely winter walk, we found a great example of a tree with some of its roots exposed. We talked about how God designed the roots of a tree to hold it up and take in water and nutrients.

Finally we have left some celery stalks in water and food colouring and we are hoping that we will be able to see how the water has been absorbed into the stalks and up the stem. 


  1. You can also do your last experiment with a white carnation. One of two ways:
    you can either use two carnations, put one in water with, say, red food dye and the other with blue for example, or you can use one carnation and split the stem up the middle and put each half in a different jug with different coloured water. Either way you will find after some days that the tips of the petals will turn colour accordingly. Fun stuff.
    Have a nice afternoon, S

  2. Thanks for commenting on my blog! What fun experiments here with water!! I cannot wait to come back by when I have more time to read and spend more time here!! Looks like a lot of fun. We may have to try these too :)