Learn more about our oceans for National Science Week
The countdown to National Science Week 2020 is on! Australia’s annual celebration of science and technology for everybody is taking place from 15–23 August and is sure to engage curious kids. You can check out all the cool activities and events here.
This year’s theme is Deep Blue: innovations for the future of our oceans, so we thought we’d use this opportunity to look at some fun and surprising facts about Earth and our oceans!
- Earth is a rocky planet made up of multiple layers.It was formed about 4.5 billion years ago from a ball of bubbling molten rock. The outside of the planet cooled and solidified into a hard crust about 64 kilometres thick. At the very centre of Earth is a superhot, solid core!
- There’s A LOT of water on Earth.In fact, more than two-thirds of our planet is covered in water. What’s more, our oceans hold 96.5 per cent of all the water on Earth.
- Waves are created when the weight at the crest pushes water into shallower areas.Sometimes, ocean waves combine with others to create a single large wave called a rogue wave, like the one seen off the coast of Norway in 1995. It was 25 metres high and surrounded by 6-metre waves!
- Earth’s water is constantly transforming, using a process known as the water cycle.Heat from the Sun uses evaporation to turn some of the water in the oceans into a gas called water vapour. This rises into the sky and condenses back into a liquid to form clouds. Water falls from clouds as rain or snow, then drains back into the oceans along rivers.
- The Earth’s temperature is rising.Since 1880, the average temperature at the surface of our planet has risen by around 0.8°C per decade, due to global warming. If this continues, the ice covering Antarctica could disappear, sea levels will rise and some areas of land will be flooded.
Our oceans are amazing! We all need to do our bit to support their future and the health of our planet. Learning more about how our planet works is an important step (and it’s fun!).
Discover all these facts and more about our oceans, the Earth and the environment in our jam-packed science kit for kids, Extreme Earth. Junior scientists can also conduct experiments like making rain, creating slow-motion ocean waves in a bottle, capturing a raindrop and making a rainbow!
And for those who want more, check out our Curious Universe rangefor more excellent science activities for kids at home. From building a dancing hip-hop bot with Radical Roboticsto making a burglar alarm with Shocking Electricity, these science kits are perfect for inquisitive kids who are inspired to do their own science experiments at home.