Thursday, 30 April 2015

Topography and Gemstones

Topography. The children learnt how to understand contours on a map. We made some basic dough mountains,some steep and some with a gentle slope, but all 5cm high.

At each cm we sliced the dough and drew around the base.

The children learnt that contour lines close together signify a steeper incline.

Rocks under a microscope.

An experiment to see what happens to water when it freezes inside a rock. We filled balloons with water, coated them in clay and left them to dry. When they had dried - about 24 hours - the children put them in the freezer.

Because water expands when it is frozen, the rocks cracked.

Learning about gemstones and where they come from in the world.

The children each drew a map of the world.

My shiny card collection came in use for this!

Create your own gemstone.