"http://yt.cl.nr/iQOHRKKNNLQ"
In this segment I ask why astronauts in the space station are weightless. The most common answer is because there is no gravity in space. But of course there is gravity in space, especially where the space station is located (only about 400km from Earth's surface). So astronauts still experience a gravitational pull - it's just that they and the space station are in free fall so they are accelerating together towards the Earth. The space station doesn't crash into the Earth because of its orbital velocity - it's going 28,000 km/h so as it falls, the Earth curves away from it.
"http://yt.cl.nr/QcwtF4RkHe8"
What started as a master's thesis project has blown up -- literally -- into an entirely new kind of bike helmet. You might not see it because it works more like an airbag.
Quiz that is simple, gives instant feedback and a final score. Note that students should not sign in to facebook or twitter to obtain their final score.
For teachers and students, this toolkit of disaster resilience education resources focuses on both individual and community resilience, vital components to developing a shared understanding of the critical role everyone plays in developing a disaster resilient Australia.
Resources are designed to be flexible to individual learning styles and are aligned to curriculum.