it will float again. If you have a clear straw you can see the air bubble taking up less space! Extension Activities Listed below are some optional activities to further your students’ learning. They utilise play and enquiry to explore the physics of buoyancy. Activity 1: Build a Deepsea Challenger You will need: Tank of water deep enough to sink an upright 600mL water bottle with some water left above it Per group (Image 1) 600mL plastic bottle (approximately) Weights (Eg. balloons filled with sand/rocks/rice) String Paper clips/Bulldog clips Student should use this kit to construct a removable weight system for the Deepsea Challenger (the bottle). It to sink the bottle in an upright position. The weights need to be able to be removed easily in one movement, allowing the bottle to rise to the top again. The water level in the bottle is up to the students, as is what they want to experiment with to weight their Challenger. Activity 2: What is buoyancy (1) This activity is best run as a teacher demonstration to stimulate discussion. You will need: Three identical opaque watertight containers Water trough large enough to hold all three Method
it will float again. If you have a clear straw you can see the air bubble taking up less space! Extension Activities Listed below are some optional activities to further your students’ learning. They utilise play and enquiry to explore the physics of buoyancy. Activity 1: Build a Deepsea Challenger You will need: Tank of water deep enough to sink an upright 600mL water bottle with some water left above it Per group (Image 1) 600mL plastic bottle (approximately) Weights (Eg. balloons filled with sand/rocks/rice) String Paper clips/Bulldog clips Student should use this kit to construct a removable weight system for the Deepsea Challenger (the bottle). It to sink the bottle in an upright position. The weights need to be able to be removed easily in one movement, allowing the bottle to rise to the top again. The water level in the bottle is up to the students, as is what they want to experiment with to weight their Challenger. Activity 2: What is buoyancy (1) This activity is best run as a teacher demonstration to stimulate discussion. You will need: Three identical opaque watertight containers Water trough large enough to hold all three Method