It’s a beautiful sunny day and so my challenge for you is to make a Sun Dial.

What you need:
A long straight stick you can stand up in the ground.
Smaller straight sticks
Lego or stones

How to do it:
Take your long straight pole and place it in the garden where it makes a shadow and you can get all around it.
Place a line of sticks along the shadow of the larger stick.
Use lego or write on a stone the time you placed the sticks and put it next to the line. I like to do it on the hour.
Leave the stick and come back after an hour and do another line and label it.
Also place a stone or piece of lego where the end of the shadow is furthest away from the long stick.

Keep doing this until you have all the hours of the day you can do.
If you miss an hour don’t worry, look at the other lines and see if you can estimate where the line would have been in the missing hour.
Can you notice any pattern in your sun dial?
Do shadows get bigger or smaller through the day?
If you can leave the sundial up over night you can check what happens tomorrow with the shadow. Is it the same every day? Don’t forget to turn you clock forward on the 29th March! How are you going to do that?

Don’t forget to tweet your pictures on Twitter #NatureDays and on facebook.