Glass blowing

How does heat change materials? Includes footage of a glass blower at work. Glass starts as sand, and when it is heated to a high temperature it melts to form liquid glass. When it is hot it can be formed into different shapes, then cooled to become solid again.

16 November 2012

2 minutes

This clip is from

KS1 Science Clips—Groups and Changing Materials

Morph and his shape changing exploits
Duration: 02:00
Racing cars - the effect of impact on metals
Duration: 01:47
Production and use of plastics
Duration: 00:54

Rock pools—Plants and Animals in the Local Environment
Duration: 03:14
Plants are living things—Growing Plants
Duration: 02:49
Compilation of forces in action—Forces and Movement
Duration: 00:48
Introduction to light sources (clip compilation)—Light and Dark
Duration: 00:47