"Today the youth of Australia showed our politicians that we’re not going anywhere. We’re just getting started," 17-year-old Ruby Walker said.
"We will keep striking and raising our voices until our politicians show the leadership that our generation deserves."
The biggest showing of strikers was in Melbourne where more than a thousand people gathered outside the Liberal Party HQ, causing the building to be shut down and a street closed off.
In Sydney, more than 100 students descended on Prime Minister Scott Morrison's Cronulla electoral office, while another large contingent rallied outside Labor MP Anthony Albanese's Marrickville headquarters.
Thousands of students across the country are banding together to demand action on climate change
Over in Warringah - one of the most closely watched seats this election - hundreds of primary and secondary school students gathered outside former PM Tony Abbott's office, before catching him later at a Manly cafe.
Two Warringah residents, Elsie Loadman and Yasmin Lin, both 15, confronted Mr Abbott and made clear what they wanted to see.
"For me, and especially for all of my peers, we just think that climate change is such a big issue and we just want you, as my representative because I live in Warringah, to understand that we want climate action now," Elsie said.
But Mr Abbott responded that the financial cost of climate action was high and added that it was his duty, as their local member, to "tell them to truth not just agree" with the students.
Australia Street: How important is climate change policy to you?
"He was just denying all the scientific facts," Yasmin said.
"I was so mad that I couldn't speak for a period of time."
Protesters in Warringah held signs - including "what I stand for is what I stand on" and "we're not the ones that need to be in school" demanding climate policy.
Students also gathered in Brisbane, Hobart, Perth, Adelaide and across regional Australia.
Climate change is expected to be a key issue in the upcoming election and has coloured Mr Abbott's battle against independent Zali Steggal, who has made the issue her major policy.