What is it? ... It's an explosion! Material processes - Changing materials - More chemical reactions A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.
What is it? ... It's an explosion! Material processes - Changing materials - More chemical reactions A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.