This set of activities introduces students to using their senses to observe changes, an important skill in Science. A discussion on senses and how they are used in Science, an activity to use their hearing as someone stomps through the classroom, working out what is in a mystery package (using their senses), figuring out what is making a sound and finally using all of their senses to identify more mystery objects (reviewing the series of activities). Student worksheets are available below.
In this activity students represent changes to trees across the seasons. The student worksheet includes an option for students living in temperate and tropical zones of Australia (this could certainly be adapted to fit your area more closely).
Students make the connection that sand is broken down rock material. They also discover that rocks become rounder and smaller over long time periods (through weathering) by breaking down their very own rock materials (limestone, sandstone or even brick will do).