Showing posts with label Land. Show all posts
Showing posts with label Land. Show all posts

Wednesday, 12 June 2013

The way water flows- land slides

Today we constructed small villages on a uneven terrain and then watched as we poured water down from the top and saw where the water flowed. If buildings were built on unstable land, or land close to a hill, there was a big chance of it slipping away in a land slide.




Thursday, 30 May 2013

Having a closer look


 Carrying on with our 'Land' Inquiry, today we sifted some dirt from the school garden ...





...and had a closer look.



Tuesday, 28 May 2013

Different Types of Soil

Today we were looking at the different properties of 3 soil types- clay, sand, and loam and how each type responds to water.
We looked at the textures of salt (sand) flour (loam) and modelling clay (clay)

Here are our observations

Soil type example
dry
wet
Salt (sand granules)
Gritty, rough, scratchy
Sticks together, a bit sticky
Flour (Loamy soil)
Smooth, soft, fine
Gluey, lumpy,
Modelling Clay (Clay)
Stretchy, firm,
Sticky, runny

The different types of soil react to rain etc. differently, causing constant changes in the Earth's surface